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pulseaudio/src/modules/alsa/alsa-mixer.c
Ondrej Holecek 5effc83479 update FSF addresses to FSF web page 
FSF addresses used in PA sources are no longer valid and rpmlint
generates numerous warnings during packaging because of this.
This patch changes all FSF addresses to FSF web page according to
the GPL how-to: https://www.gnu.org/licenses/gpl-howto.en.html

Done automatically by sed-ing through sources.
2015-01-14 22:20:40 +02:00

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/***
This file is part of PulseAudio.
Copyright 2004-2009 Lennart Poettering
Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <sys/types.h>
#include <asoundlib.h>
#include <math.h>
#ifdef HAVE_VALGRIND_MEMCHECK_H
#include <valgrind/memcheck.h>
#endif
#include <pulse/mainloop-api.h>
#include <pulse/sample.h>
#include <pulse/timeval.h>
#include <pulse/util.h>
#include <pulse/volume.h>
#include <pulse/xmalloc.h>
#include <pulse/utf8.h>
#include <pulsecore/i18n.h>
#include <pulsecore/log.h>
#include <pulsecore/macro.h>
#include <pulsecore/core-util.h>
#include <pulsecore/conf-parser.h>
#include <pulsecore/strbuf.h>
#include "alsa-mixer.h"
#include "alsa-util.h"
#ifdef HAVE_VALGRIND_MEMCHECK_H
/* These macros are workarounds for a bug in valgrind, which is not handling the
* ALSA TLV syscalls correctly. See
* http://valgrind.10908.n7.nabble.com/Missing-ioctl-for-SNDRV-CTL-IOCTL-TLV-READ-td42711.html */
static inline int vgfix_get_capture_dB(snd_mixer_elem_t *a, snd_mixer_selem_channel_id_t b, long *c) {
int r = snd_mixer_selem_get_capture_dB(a, b, c);
VALGRIND_MAKE_MEM_DEFINED(c, sizeof(*c));
return r;
}
static inline int vgfix_get_playback_dB(snd_mixer_elem_t *a, snd_mixer_selem_channel_id_t b, long *c) {
int r = snd_mixer_selem_get_playback_dB(a, b, c);
VALGRIND_MAKE_MEM_DEFINED(c, sizeof(*c));
return r;
}
static inline int vgfix_ask_capture_vol_dB(snd_mixer_elem_t *a, long b, long *c) {
int r = snd_mixer_selem_ask_capture_vol_dB(a, b, c);
VALGRIND_MAKE_MEM_DEFINED(c, sizeof(*c));
return r;
}
static inline int vgfix_ask_playback_vol_dB(snd_mixer_elem_t *a, long b, long *c) {
int r = snd_mixer_selem_ask_playback_vol_dB(a, b, c);
VALGRIND_MAKE_MEM_DEFINED(c, sizeof(*c));
return r;
}
static inline int vgfix_get_capture_dB_range(snd_mixer_elem_t *a, long *b, long *c) {
int r = snd_mixer_selem_get_capture_dB_range(a, b, c);
VALGRIND_MAKE_MEM_DEFINED(b, sizeof(*b));
VALGRIND_MAKE_MEM_DEFINED(c, sizeof(*c));
return r;
}
static inline int vgfix_get_playback_dB_range(snd_mixer_elem_t *a, long *b, long *c) {
int r = snd_mixer_selem_get_playback_dB_range(a, b, c);
VALGRIND_MAKE_MEM_DEFINED(b, sizeof(*b));
VALGRIND_MAKE_MEM_DEFINED(c, sizeof(*c));
return r;
}
#define snd_mixer_selem_get_capture_dB(a, b, c) vgfix_get_capture_dB(a, b, c)
#define snd_mixer_selem_get_playback_dB(a, b, c) vgfix_get_playback_dB(a, b, c)
#define snd_mixer_selem_ask_capture_vol_dB(a, b, c) vgfix_ask_capture_vol_dB(a, b, c)
#define snd_mixer_selem_ask_playback_vol_dB(a, b, c) vgfix_ask_playback_vol_dB(a, b, c)
#define snd_mixer_selem_get_capture_dB_range(a, b, c) vgfix_get_capture_dB_range(a, b, c)
#define snd_mixer_selem_get_playback_dB_range(a, b, c) vgfix_get_playback_dB_range(a, b, c)
#endif
static int setting_select(pa_alsa_setting *s, snd_mixer_t *m);
struct description_map {
const char *key;
const char *description;
};
static const char *lookup_description(const char *key, const struct description_map dm[], unsigned n) {
unsigned i;
if (!key)
return NULL;
for (i = 0; i < n; i++)
if (pa_streq(dm[i].key, key))
return _(dm[i].description);
return NULL;
}
struct pa_alsa_fdlist {
unsigned num_fds;
struct pollfd *fds;
/* This is a temporary buffer used to avoid lots of mallocs */
struct pollfd *work_fds;
snd_mixer_t *mixer;
snd_hctl_t *hctl;
pa_mainloop_api *m;
pa_defer_event *defer;
pa_io_event **ios;
bool polled;
void (*cb)(void *userdata);
void *userdata;
};
static void io_cb(pa_mainloop_api *a, pa_io_event *e, int fd, pa_io_event_flags_t events, void *userdata) {
struct pa_alsa_fdlist *fdl = userdata;
int err;
unsigned i;
unsigned short revents;
pa_assert(a);
pa_assert(fdl);
pa_assert(fdl->mixer || fdl->hctl);
pa_assert(fdl->fds);
pa_assert(fdl->work_fds);
if (fdl->polled)
return;
fdl->polled = true;
memcpy(fdl->work_fds, fdl->fds, sizeof(struct pollfd) * fdl->num_fds);
for (i = 0; i < fdl->num_fds; i++) {
if (e == fdl->ios[i]) {
if (events & PA_IO_EVENT_INPUT)
fdl->work_fds[i].revents |= POLLIN;
if (events & PA_IO_EVENT_OUTPUT)
fdl->work_fds[i].revents |= POLLOUT;
if (events & PA_IO_EVENT_ERROR)
fdl->work_fds[i].revents |= POLLERR;
if (events & PA_IO_EVENT_HANGUP)
fdl->work_fds[i].revents |= POLLHUP;
break;
}
}
pa_assert(i != fdl->num_fds);
if (fdl->hctl)
err = snd_hctl_poll_descriptors_revents(fdl->hctl, fdl->work_fds, fdl->num_fds, &revents);
else
err = snd_mixer_poll_descriptors_revents(fdl->mixer, fdl->work_fds, fdl->num_fds, &revents);
if (err < 0) {
pa_log_error("Unable to get poll revent: %s", pa_alsa_strerror(err));
return;
}
a->defer_enable(fdl->defer, 1);
if (revents) {
if (fdl->hctl)
snd_hctl_handle_events(fdl->hctl);
else
snd_mixer_handle_events(fdl->mixer);
}
}
static void defer_cb(pa_mainloop_api *a, pa_defer_event *e, void *userdata) {
struct pa_alsa_fdlist *fdl = userdata;
unsigned num_fds, i;
int err, n;
struct pollfd *temp;
pa_assert(a);
pa_assert(fdl);
pa_assert(fdl->mixer || fdl->hctl);
a->defer_enable(fdl->defer, 0);
if (fdl->hctl)
n = snd_hctl_poll_descriptors_count(fdl->hctl);
else
n = snd_mixer_poll_descriptors_count(fdl->mixer);
if (n < 0) {
pa_log("snd_mixer_poll_descriptors_count() failed: %s", pa_alsa_strerror(n));
return;
}
num_fds = (unsigned) n;
if (num_fds != fdl->num_fds) {
if (fdl->fds)
pa_xfree(fdl->fds);
if (fdl->work_fds)
pa_xfree(fdl->work_fds);
fdl->fds = pa_xnew0(struct pollfd, num_fds);
fdl->work_fds = pa_xnew(struct pollfd, num_fds);
}
memset(fdl->work_fds, 0, sizeof(struct pollfd) * num_fds);
if (fdl->hctl)
err = snd_hctl_poll_descriptors(fdl->hctl, fdl->work_fds, num_fds);
else
err = snd_mixer_poll_descriptors(fdl->mixer, fdl->work_fds, num_fds);
if (err < 0) {
pa_log_error("Unable to get poll descriptors: %s", pa_alsa_strerror(err));
return;
}
fdl->polled = false;
if (memcmp(fdl->fds, fdl->work_fds, sizeof(struct pollfd) * num_fds) == 0)
return;
if (fdl->ios) {
for (i = 0; i < fdl->num_fds; i++)
a->io_free(fdl->ios[i]);
if (num_fds != fdl->num_fds) {
pa_xfree(fdl->ios);
fdl->ios = NULL;
}
}
if (!fdl->ios)
fdl->ios = pa_xnew(pa_io_event*, num_fds);
/* Swap pointers */
temp = fdl->work_fds;
fdl->work_fds = fdl->fds;
fdl->fds = temp;
fdl->num_fds = num_fds;
for (i = 0;i < num_fds;i++)
fdl->ios[i] = a->io_new(a, fdl->fds[i].fd,
((fdl->fds[i].events & POLLIN) ? PA_IO_EVENT_INPUT : 0) |
((fdl->fds[i].events & POLLOUT) ? PA_IO_EVENT_OUTPUT : 0),
io_cb, fdl);
}
struct pa_alsa_fdlist *pa_alsa_fdlist_new(void) {
struct pa_alsa_fdlist *fdl;
fdl = pa_xnew0(struct pa_alsa_fdlist, 1);
return fdl;
}
void pa_alsa_fdlist_free(struct pa_alsa_fdlist *fdl) {
pa_assert(fdl);
if (fdl->defer) {
pa_assert(fdl->m);
fdl->m->defer_free(fdl->defer);
}
if (fdl->ios) {
unsigned i;
pa_assert(fdl->m);
for (i = 0; i < fdl->num_fds; i++)
fdl->m->io_free(fdl->ios[i]);
pa_xfree(fdl->ios);
}
if (fdl->fds)
pa_xfree(fdl->fds);
if (fdl->work_fds)
pa_xfree(fdl->work_fds);
pa_xfree(fdl);
}
/* We can listen to either a snd_hctl_t or a snd_mixer_t, but not both */
int pa_alsa_fdlist_set_handle(struct pa_alsa_fdlist *fdl, snd_mixer_t *mixer_handle, snd_hctl_t *hctl_handle, pa_mainloop_api *m) {
pa_assert(fdl);
pa_assert(hctl_handle || mixer_handle);
pa_assert(!(hctl_handle && mixer_handle));
pa_assert(m);
pa_assert(!fdl->m);
fdl->hctl = hctl_handle;
fdl->mixer = mixer_handle;
fdl->m = m;
fdl->defer = m->defer_new(m, defer_cb, fdl);
return 0;
}
struct pa_alsa_mixer_pdata {
pa_rtpoll *rtpoll;
pa_rtpoll_item *poll_item;
snd_mixer_t *mixer;
};
struct pa_alsa_mixer_pdata *pa_alsa_mixer_pdata_new(void) {
struct pa_alsa_mixer_pdata *pd;
pd = pa_xnew0(struct pa_alsa_mixer_pdata, 1);
return pd;
}
void pa_alsa_mixer_pdata_free(struct pa_alsa_mixer_pdata *pd) {
pa_assert(pd);
if (pd->poll_item) {
pa_rtpoll_item_free(pd->poll_item);
}
pa_xfree(pd);
}
static int rtpoll_work_cb(pa_rtpoll_item *i) {
struct pa_alsa_mixer_pdata *pd;
struct pollfd *p;
unsigned n_fds;
unsigned short revents = 0;
int err, ret = 0;
pd = pa_rtpoll_item_get_userdata(i);
pa_assert_fp(pd);
pa_assert_fp(i == pd->poll_item);
p = pa_rtpoll_item_get_pollfd(i, &n_fds);
if ((err = snd_mixer_poll_descriptors_revents(pd->mixer, p, n_fds, &revents)) < 0) {
pa_log_error("Unable to get poll revent: %s", pa_alsa_strerror(err));
ret = -1;
goto fail;
}
if (revents) {
if (revents & (POLLNVAL | POLLERR)) {
pa_log_debug("Device disconnected, stopping poll on mixer");
goto fail;
} else if (revents & POLLERR) {
/* This shouldn't happen. */
pa_log_error("Got a POLLERR (revents = %04x), stopping poll on mixer", revents);
goto fail;
}
err = snd_mixer_handle_events(pd->mixer);
if (PA_LIKELY(err >= 0)) {
pa_rtpoll_item_free(i);
pa_alsa_set_mixer_rtpoll(pd, pd->mixer, pd->rtpoll);
} else {
pa_log_error("Error handling mixer event: %s", pa_alsa_strerror(err));
ret = -1;
goto fail;
}
}
return ret;
fail:
pa_rtpoll_item_free(i);
pd->poll_item = NULL;
pd->rtpoll = NULL;
pd->mixer = NULL;
return ret;
}
int pa_alsa_set_mixer_rtpoll(struct pa_alsa_mixer_pdata *pd, snd_mixer_t *mixer, pa_rtpoll *rtp) {
pa_rtpoll_item *i;
struct pollfd *p;
int err, n;
pa_assert(pd);
pa_assert(mixer);
pa_assert(rtp);
if ((n = snd_mixer_poll_descriptors_count(mixer)) < 0) {
pa_log("snd_mixer_poll_descriptors_count() failed: %s", pa_alsa_strerror(n));
return -1;
}
i = pa_rtpoll_item_new(rtp, PA_RTPOLL_LATE, (unsigned) n);
p = pa_rtpoll_item_get_pollfd(i, NULL);
memset(p, 0, sizeof(struct pollfd) * n);
if ((err = snd_mixer_poll_descriptors(mixer, p, (unsigned) n)) < 0) {
pa_log_error("Unable to get poll descriptors: %s", pa_alsa_strerror(err));
pa_rtpoll_item_free(i);
return -1;
}
pd->rtpoll = rtp;
pd->poll_item = i;
pd->mixer = mixer;
pa_rtpoll_item_set_userdata(i, pd);
pa_rtpoll_item_set_work_callback(i, rtpoll_work_cb);
return 0;
}
static const snd_mixer_selem_channel_id_t alsa_channel_ids[PA_CHANNEL_POSITION_MAX] = {
[PA_CHANNEL_POSITION_MONO] = SND_MIXER_SCHN_MONO, /* The ALSA name is just an alias! */
[PA_CHANNEL_POSITION_FRONT_CENTER] = SND_MIXER_SCHN_FRONT_CENTER,
[PA_CHANNEL_POSITION_FRONT_LEFT] = SND_MIXER_SCHN_FRONT_LEFT,
[PA_CHANNEL_POSITION_FRONT_RIGHT] = SND_MIXER_SCHN_FRONT_RIGHT,
[PA_CHANNEL_POSITION_REAR_CENTER] = SND_MIXER_SCHN_REAR_CENTER,
[PA_CHANNEL_POSITION_REAR_LEFT] = SND_MIXER_SCHN_REAR_LEFT,
[PA_CHANNEL_POSITION_REAR_RIGHT] = SND_MIXER_SCHN_REAR_RIGHT,
[PA_CHANNEL_POSITION_LFE] = SND_MIXER_SCHN_WOOFER,
[PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_SIDE_LEFT] = SND_MIXER_SCHN_SIDE_LEFT,
[PA_CHANNEL_POSITION_SIDE_RIGHT] = SND_MIXER_SCHN_SIDE_RIGHT,
[PA_CHANNEL_POSITION_AUX0] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX1] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX2] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX3] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX4] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX5] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX6] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX7] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX8] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX9] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX10] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX11] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX12] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX13] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX14] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX15] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX16] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX17] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX18] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX19] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX20] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX21] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX22] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX23] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX24] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX25] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX26] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX27] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX28] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX29] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX30] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_AUX31] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_TOP_CENTER] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_TOP_FRONT_CENTER] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_TOP_FRONT_LEFT] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_TOP_FRONT_RIGHT] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_TOP_REAR_CENTER] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_TOP_REAR_LEFT] = SND_MIXER_SCHN_UNKNOWN,
[PA_CHANNEL_POSITION_TOP_REAR_RIGHT] = SND_MIXER_SCHN_UNKNOWN
};
static void setting_free(pa_alsa_setting *s) {
pa_assert(s);
if (s->options)
pa_idxset_free(s->options, NULL);
pa_xfree(s->name);
pa_xfree(s->description);
pa_xfree(s);
}
static void option_free(pa_alsa_option *o) {
pa_assert(o);
pa_xfree(o->alsa_name);
pa_xfree(o->name);
pa_xfree(o->description);
pa_xfree(o);
}
static void decibel_fix_free(pa_alsa_decibel_fix *db_fix) {
pa_assert(db_fix);
pa_xfree(db_fix->name);
pa_xfree(db_fix->db_values);
pa_xfree(db_fix);
}
static void jack_free(pa_alsa_jack *j) {
pa_assert(j);
pa_xfree(j->alsa_name);
pa_xfree(j->name);
pa_xfree(j);
}
static void element_free(pa_alsa_element *e) {
pa_alsa_option *o;
pa_assert(e);
while ((o = e->options)) {
PA_LLIST_REMOVE(pa_alsa_option, e->options, o);
option_free(o);
}
if (e->db_fix)
decibel_fix_free(e->db_fix);
pa_xfree(e->alsa_name);
pa_xfree(e);
}
void pa_alsa_path_free(pa_alsa_path *p) {
pa_alsa_jack *j;
pa_alsa_element *e;
pa_alsa_setting *s;
pa_assert(p);
while ((j = p->jacks)) {
PA_LLIST_REMOVE(pa_alsa_jack, p->jacks, j);
jack_free(j);
}
while ((e = p->elements)) {
PA_LLIST_REMOVE(pa_alsa_element, p->elements, e);
element_free(e);
}
while ((s = p->settings)) {
PA_LLIST_REMOVE(pa_alsa_setting, p->settings, s);
setting_free(s);
}
pa_proplist_free(p->proplist);
pa_xfree(p->name);
pa_xfree(p->description);
pa_xfree(p->description_key);
pa_xfree(p);
}
void pa_alsa_path_set_free(pa_alsa_path_set *ps) {
pa_assert(ps);
if (ps->paths)
pa_hashmap_free(ps->paths);
pa_xfree(ps);
}
static long to_alsa_dB(pa_volume_t v) {
return (long) (pa_sw_volume_to_dB(v) * 100.0);
}
static pa_volume_t from_alsa_dB(long v) {
return pa_sw_volume_from_dB((double) v / 100.0);
}
static long to_alsa_volume(pa_volume_t v, long min, long max) {
long w;
w = (long) round(((double) v * (double) (max - min)) / PA_VOLUME_NORM) + min;
return PA_CLAMP_UNLIKELY(w, min, max);
}
static pa_volume_t from_alsa_volume(long v, long min, long max) {
return (pa_volume_t) round(((double) (v - min) * PA_VOLUME_NORM) / (double) (max - min));
}
#define SELEM_INIT(sid, name) \
do { \
snd_mixer_selem_id_alloca(&(sid)); \
snd_mixer_selem_id_set_name((sid), (name)); \
snd_mixer_selem_id_set_index((sid), 0); \
} while(false)
static int element_get_volume(pa_alsa_element *e, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v) {
snd_mixer_selem_id_t *sid;
snd_mixer_elem_t *me;
snd_mixer_selem_channel_id_t c;
pa_channel_position_mask_t mask = 0;
unsigned k;
pa_assert(m);
pa_assert(e);
pa_assert(cm);
pa_assert(v);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return -1;
}
pa_cvolume_mute(v, cm->channels);
/* We take the highest volume of all channels that match */
for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
int r;
pa_volume_t f;
if (e->has_dB) {
long value = 0;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
if (snd_mixer_selem_has_playback_channel(me, c)) {
if (e->db_fix) {
if ((r = snd_mixer_selem_get_playback_volume(me, c, &value)) >= 0) {
/* If the channel volume is outside the limits set
* by the dB fix, we clamp the hw volume to be
* within the limits. */
if (value < e->db_fix->min_step) {
value = e->db_fix->min_step;
snd_mixer_selem_set_playback_volume(me, c, value);
pa_log_debug("Playback volume for element %s channel %i was below the dB fix limit. "
"Volume reset to %0.2f dB.", e->alsa_name, c,
e->db_fix->db_values[value - e->db_fix->min_step] / 100.0);
} else if (value > e->db_fix->max_step) {
value = e->db_fix->max_step;
snd_mixer_selem_set_playback_volume(me, c, value);
pa_log_debug("Playback volume for element %s channel %i was over the dB fix limit. "
"Volume reset to %0.2f dB.", e->alsa_name, c,
e->db_fix->db_values[value - e->db_fix->min_step] / 100.0);
}
/* Volume step -> dB value conversion. */
value = e->db_fix->db_values[value - e->db_fix->min_step];
}
} else
r = snd_mixer_selem_get_playback_dB(me, c, &value);
} else
r = -1;
} else {
if (snd_mixer_selem_has_capture_channel(me, c)) {
if (e->db_fix) {
if ((r = snd_mixer_selem_get_capture_volume(me, c, &value)) >= 0) {
/* If the channel volume is outside the limits set
* by the dB fix, we clamp the hw volume to be
* within the limits. */
if (value < e->db_fix->min_step) {
value = e->db_fix->min_step;
snd_mixer_selem_set_capture_volume(me, c, value);
pa_log_debug("Capture volume for element %s channel %i was below the dB fix limit. "
"Volume reset to %0.2f dB.", e->alsa_name, c,
e->db_fix->db_values[value - e->db_fix->min_step] / 100.0);
} else if (value > e->db_fix->max_step) {
value = e->db_fix->max_step;
snd_mixer_selem_set_capture_volume(me, c, value);
pa_log_debug("Capture volume for element %s channel %i was over the dB fix limit. "
"Volume reset to %0.2f dB.", e->alsa_name, c,
e->db_fix->db_values[value - e->db_fix->min_step] / 100.0);
}
/* Volume step -> dB value conversion. */
value = e->db_fix->db_values[value - e->db_fix->min_step];
}
} else
r = snd_mixer_selem_get_capture_dB(me, c, &value);
} else
r = -1;
}
if (r < 0)
continue;
#ifdef HAVE_VALGRIND_MEMCHECK_H
VALGRIND_MAKE_MEM_DEFINED(&value, sizeof(value));
#endif
f = from_alsa_dB(value);
} else {
long value = 0;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
if (snd_mixer_selem_has_playback_channel(me, c))
r = snd_mixer_selem_get_playback_volume(me, c, &value);
else
r = -1;
} else {
if (snd_mixer_selem_has_capture_channel(me, c))
r = snd_mixer_selem_get_capture_volume(me, c, &value);
else
r = -1;
}
if (r < 0)
continue;
f = from_alsa_volume(value, e->min_volume, e->max_volume);
}
for (k = 0; k < cm->channels; k++)
if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k]))
if (v->values[k] < f)
v->values[k] = f;
mask |= e->masks[c][e->n_channels-1];
}
for (k = 0; k < cm->channels; k++)
if (!(mask & PA_CHANNEL_POSITION_MASK(cm->map[k])))
v->values[k] = PA_VOLUME_NORM;
return 0;
}
int pa_alsa_path_get_volume(pa_alsa_path *p, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v) {
pa_alsa_element *e;
pa_assert(m);
pa_assert(p);
pa_assert(cm);
pa_assert(v);
if (!p->has_volume)
return -1;
pa_cvolume_reset(v, cm->channels);
PA_LLIST_FOREACH(e, p->elements) {
pa_cvolume ev;
if (e->volume_use != PA_ALSA_VOLUME_MERGE)
continue;
pa_assert(!p->has_dB || e->has_dB);
if (element_get_volume(e, m, cm, &ev) < 0)
return -1;
/* If we have no dB information all we can do is take the first element and leave */
if (!p->has_dB) {
*v = ev;
return 0;
}
pa_sw_cvolume_multiply(v, v, &ev);
}
return 0;
}
static int element_get_switch(pa_alsa_element *e, snd_mixer_t *m, bool *b) {
snd_mixer_selem_id_t *sid;
snd_mixer_elem_t *me;
snd_mixer_selem_channel_id_t c;
pa_assert(m);
pa_assert(e);
pa_assert(b);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return -1;
}
/* We return muted if at least one channel is muted */
for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
int r;
int value = 0;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
if (snd_mixer_selem_has_playback_channel(me, c))
r = snd_mixer_selem_get_playback_switch(me, c, &value);
else
r = -1;
} else {
if (snd_mixer_selem_has_capture_channel(me, c))
r = snd_mixer_selem_get_capture_switch(me, c, &value);
else
r = -1;
}
if (r < 0)
continue;
if (!value) {
*b = false;
return 0;
}
}
*b = true;
return 0;
}
int pa_alsa_path_get_mute(pa_alsa_path *p, snd_mixer_t *m, bool *muted) {
pa_alsa_element *e;
pa_assert(m);
pa_assert(p);
pa_assert(muted);
if (!p->has_mute)
return -1;
PA_LLIST_FOREACH(e, p->elements) {
bool b;
if (e->switch_use != PA_ALSA_SWITCH_MUTE)
continue;
if (element_get_switch(e, m, &b) < 0)
return -1;
if (!b) {
*muted = true;
return 0;
}
}
*muted = false;
return 0;
}
/* Finds the closest item in db_fix->db_values and returns the corresponding
* step. *db_value is replaced with the value from the db_values table.
* Rounding is done based on the rounding parameter: -1 means rounding down and
* +1 means rounding up. */
static long decibel_fix_get_step(pa_alsa_decibel_fix *db_fix, long *db_value, int rounding) {
unsigned i = 0;
unsigned max_i = 0;
pa_assert(db_fix);
pa_assert(db_value);
pa_assert(rounding != 0);
max_i = db_fix->max_step - db_fix->min_step;
if (rounding > 0) {
for (i = 0; i < max_i; i++) {
if (db_fix->db_values[i] >= *db_value)
break;
}
} else {
for (i = 0; i < max_i; i++) {
if (db_fix->db_values[i + 1] > *db_value)
break;
}
}
*db_value = db_fix->db_values[i];
return i + db_fix->min_step;
}
/* Alsa lib documentation says for snd_mixer_selem_set_playback_dB() direction argument,
* that "-1 = accurate or first below, 0 = accurate, 1 = accurate or first above".
* But even with accurate nearest dB volume step is not selected, so that is why we need
* this function. Returns 0 and nearest selectable volume in *value_dB on success or
* negative error code if fails. */
static int element_get_nearest_alsa_dB(snd_mixer_elem_t *me, snd_mixer_selem_channel_id_t c, pa_alsa_direction_t d, long *value_dB) {
long alsa_val;
long value_high;
long value_low;
int r = -1;
pa_assert(me);
pa_assert(value_dB);
if (d == PA_ALSA_DIRECTION_OUTPUT) {
if ((r = snd_mixer_selem_ask_playback_dB_vol(me, *value_dB, +1, &alsa_val)) >= 0)
r = snd_mixer_selem_ask_playback_vol_dB(me, alsa_val, &value_high);
if (r < 0)
return r;
if (value_high == *value_dB)
return r;
if ((r = snd_mixer_selem_ask_playback_dB_vol(me, *value_dB, -1, &alsa_val)) >= 0)
r = snd_mixer_selem_ask_playback_vol_dB(me, alsa_val, &value_low);
} else {
if ((r = snd_mixer_selem_ask_capture_dB_vol(me, *value_dB, +1, &alsa_val)) >= 0)
r = snd_mixer_selem_ask_capture_vol_dB(me, alsa_val, &value_high);
if (r < 0)
return r;
if (value_high == *value_dB)
return r;
if ((r = snd_mixer_selem_ask_capture_dB_vol(me, *value_dB, -1, &alsa_val)) >= 0)
r = snd_mixer_selem_ask_capture_vol_dB(me, alsa_val, &value_low);
}
if (r < 0)
return r;
if (labs(value_high - *value_dB) < labs(value_low - *value_dB))
*value_dB = value_high;
else
*value_dB = value_low;
return r;
}
static int element_set_volume(pa_alsa_element *e, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v, bool deferred_volume, bool write_to_hw) {
snd_mixer_selem_id_t *sid;
pa_cvolume rv;
snd_mixer_elem_t *me;
snd_mixer_selem_channel_id_t c;
pa_channel_position_mask_t mask = 0;
unsigned k;
pa_assert(m);
pa_assert(e);
pa_assert(cm);
pa_assert(v);
pa_assert(pa_cvolume_compatible_with_channel_map(v, cm));
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return -1;
}
pa_cvolume_mute(&rv, cm->channels);
for (c = 0; c <= SND_MIXER_SCHN_LAST; c++) {
int r;
pa_volume_t f = PA_VOLUME_MUTED;
bool found = false;
for (k = 0; k < cm->channels; k++)
if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k])) {
found = true;
if (v->values[k] > f)
f = v->values[k];
}
if (!found) {
/* Hmm, so this channel does not exist in the volume
* struct, so let's bind it to the overall max of the
* volume. */
f = pa_cvolume_max(v);
}
if (e->has_dB) {
long value = to_alsa_dB(f);
int rounding;
if (e->volume_limit >= 0 && value > (e->max_dB * 100))
value = e->max_dB * 100;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
/* If we call set_playback_volume() without checking first
* if the channel is available, ALSA behaves very
* strangely and doesn't fail the call */
if (snd_mixer_selem_has_playback_channel(me, c)) {
rounding = +1;
if (e->db_fix) {
if (write_to_hw)
r = snd_mixer_selem_set_playback_volume(me, c, decibel_fix_get_step(e->db_fix, &value, rounding));
else {
decibel_fix_get_step(e->db_fix, &value, rounding);
r = 0;
}
} else {
if (write_to_hw) {
if (deferred_volume) {
if ((r = element_get_nearest_alsa_dB(me, c, PA_ALSA_DIRECTION_OUTPUT, &value)) >= 0)
r = snd_mixer_selem_set_playback_dB(me, c, value, 0);
} else {
if ((r = snd_mixer_selem_set_playback_dB(me, c, value, rounding)) >= 0)
r = snd_mixer_selem_get_playback_dB(me, c, &value);
}
} else {
long alsa_val;
if ((r = snd_mixer_selem_ask_playback_dB_vol(me, value, rounding, &alsa_val)) >= 0)
r = snd_mixer_selem_ask_playback_vol_dB(me, alsa_val, &value);
}
}
} else
r = -1;
} else {
if (snd_mixer_selem_has_capture_channel(me, c)) {
rounding = -1;
if (e->db_fix) {
if (write_to_hw)
r = snd_mixer_selem_set_capture_volume(me, c, decibel_fix_get_step(e->db_fix, &value, rounding));
else {
decibel_fix_get_step(e->db_fix, &value, rounding);
r = 0;
}
} else {
if (write_to_hw) {
if (deferred_volume) {
if ((r = element_get_nearest_alsa_dB(me, c, PA_ALSA_DIRECTION_INPUT, &value)) >= 0)
r = snd_mixer_selem_set_capture_dB(me, c, value, 0);
} else {
if ((r = snd_mixer_selem_set_capture_dB(me, c, value, rounding)) >= 0)
r = snd_mixer_selem_get_capture_dB(me, c, &value);
}
} else {
long alsa_val;
if ((r = snd_mixer_selem_ask_capture_dB_vol(me, value, rounding, &alsa_val)) >= 0)
r = snd_mixer_selem_ask_capture_vol_dB(me, alsa_val, &value);
}
}
} else
r = -1;
}
if (r < 0)
continue;
f = from_alsa_dB(value);
} else {
long value;
value = to_alsa_volume(f, e->min_volume, e->max_volume);
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
if (snd_mixer_selem_has_playback_channel(me, c)) {
if ((r = snd_mixer_selem_set_playback_volume(me, c, value)) >= 0)
r = snd_mixer_selem_get_playback_volume(me, c, &value);
} else
r = -1;
} else {
if (snd_mixer_selem_has_capture_channel(me, c)) {
if ((r = snd_mixer_selem_set_capture_volume(me, c, value)) >= 0)
r = snd_mixer_selem_get_capture_volume(me, c, &value);
} else
r = -1;
}
if (r < 0)
continue;
f = from_alsa_volume(value, e->min_volume, e->max_volume);
}
for (k = 0; k < cm->channels; k++)
if (e->masks[c][e->n_channels-1] & PA_CHANNEL_POSITION_MASK(cm->map[k]))
if (rv.values[k] < f)
rv.values[k] = f;
mask |= e->masks[c][e->n_channels-1];
}
for (k = 0; k < cm->channels; k++)
if (!(mask & PA_CHANNEL_POSITION_MASK(cm->map[k])))
rv.values[k] = PA_VOLUME_NORM;
*v = rv;
return 0;
}
int pa_alsa_path_set_volume(pa_alsa_path *p, snd_mixer_t *m, const pa_channel_map *cm, pa_cvolume *v, bool deferred_volume, bool write_to_hw) {
pa_alsa_element *e;
pa_cvolume rv;
pa_assert(m);
pa_assert(p);
pa_assert(cm);
pa_assert(v);
pa_assert(pa_cvolume_compatible_with_channel_map(v, cm));
if (!p->has_volume)
return -1;
rv = *v; /* Remaining adjustment */
pa_cvolume_reset(v, cm->channels); /* Adjustment done */
PA_LLIST_FOREACH(e, p->elements) {
pa_cvolume ev;
if (e->volume_use != PA_ALSA_VOLUME_MERGE)
continue;
pa_assert(!p->has_dB || e->has_dB);
ev = rv;
if (element_set_volume(e, m, cm, &ev, deferred_volume, write_to_hw) < 0)
return -1;
if (!p->has_dB) {
*v = ev;
return 0;
}
pa_sw_cvolume_multiply(v, v, &ev);
pa_sw_cvolume_divide(&rv, &rv, &ev);
}
return 0;
}
static int element_set_switch(pa_alsa_element *e, snd_mixer_t *m, bool b) {
snd_mixer_elem_t *me;
snd_mixer_selem_id_t *sid;
int r;
pa_assert(m);
pa_assert(e);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return -1;
}
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
r = snd_mixer_selem_set_playback_switch_all(me, b);
else
r = snd_mixer_selem_set_capture_switch_all(me, b);
if (r < 0)
pa_log_warn("Failed to set switch of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
return r;
}
int pa_alsa_path_set_mute(pa_alsa_path *p, snd_mixer_t *m, bool muted) {
pa_alsa_element *e;
pa_assert(m);
pa_assert(p);
if (!p->has_mute)
return -1;
PA_LLIST_FOREACH(e, p->elements) {
if (e->switch_use != PA_ALSA_SWITCH_MUTE)
continue;
if (element_set_switch(e, m, !muted) < 0)
return -1;
}
return 0;
}
/* Depending on whether e->volume_use is _OFF, _ZERO or _CONSTANT, this
* function sets all channels of the volume element to e->min_volume, 0 dB or
* e->constant_volume. */
static int element_set_constant_volume(pa_alsa_element *e, snd_mixer_t *m) {
snd_mixer_elem_t *me = NULL;
snd_mixer_selem_id_t *sid = NULL;
int r = 0;
long volume = -1;
bool volume_set = false;
pa_assert(m);
pa_assert(e);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return -1;
}
switch (e->volume_use) {
case PA_ALSA_VOLUME_OFF:
volume = e->min_volume;
volume_set = true;
break;
case PA_ALSA_VOLUME_ZERO:
if (e->db_fix) {
long dB = 0;
volume = decibel_fix_get_step(e->db_fix, &dB, (e->direction == PA_ALSA_DIRECTION_OUTPUT ? +1 : -1));
volume_set = true;
}
break;
case PA_ALSA_VOLUME_CONSTANT:
volume = e->constant_volume;
volume_set = true;
break;
default:
pa_assert_not_reached();
}
if (volume_set) {
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
r = snd_mixer_selem_set_playback_volume_all(me, volume);
else
r = snd_mixer_selem_set_capture_volume_all(me, volume);
} else {
pa_assert(e->volume_use == PA_ALSA_VOLUME_ZERO);
pa_assert(!e->db_fix);
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
r = snd_mixer_selem_set_playback_dB_all(me, 0, +1);
else
r = snd_mixer_selem_set_capture_dB_all(me, 0, -1);
}
if (r < 0)
pa_log_warn("Failed to set volume of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
return r;
}
int pa_alsa_path_select(pa_alsa_path *p, pa_alsa_setting *s, snd_mixer_t *m, bool device_is_muted) {
pa_alsa_element *e;
int r = 0;
pa_assert(m);
pa_assert(p);
pa_log_debug("Activating path %s", p->name);
pa_alsa_path_dump(p);
/* First turn on hw mute if available, to avoid noise
* when setting the mixer controls. */
if (p->mute_during_activation) {
PA_LLIST_FOREACH(e, p->elements) {
if (e->switch_use == PA_ALSA_SWITCH_MUTE)
/* If the muting fails here, that's not a critical problem for
* selecting a path, so we ignore the return value.
* element_set_switch() will print a warning anyway, so this
* won't be a silent failure either. */
(void) element_set_switch(e, m, false);
}
}
PA_LLIST_FOREACH(e, p->elements) {
switch (e->switch_use) {
case PA_ALSA_SWITCH_OFF:
r = element_set_switch(e, m, false);
break;
case PA_ALSA_SWITCH_ON:
r = element_set_switch(e, m, true);
break;
case PA_ALSA_SWITCH_MUTE:
case PA_ALSA_SWITCH_IGNORE:
case PA_ALSA_SWITCH_SELECT:
r = 0;
break;
}
if (r < 0)
return -1;
switch (e->volume_use) {
case PA_ALSA_VOLUME_OFF:
case PA_ALSA_VOLUME_ZERO:
case PA_ALSA_VOLUME_CONSTANT:
r = element_set_constant_volume(e, m);
break;
case PA_ALSA_VOLUME_MERGE:
case PA_ALSA_VOLUME_IGNORE:
r = 0;
break;
}
if (r < 0)
return -1;
}
if (s)
setting_select(s, m);
/* Finally restore hw mute to the device mute status. */
if (p->mute_during_activation) {
PA_LLIST_FOREACH(e, p->elements) {
if (e->switch_use == PA_ALSA_SWITCH_MUTE) {
if (element_set_switch(e, m, !device_is_muted) < 0)
return -1;
}
}
}
return 0;
}
static int check_required(pa_alsa_element *e, snd_mixer_elem_t *me) {
bool has_switch;
bool has_enumeration;
bool has_volume;
pa_assert(e);
pa_assert(me);
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
has_switch =
snd_mixer_selem_has_playback_switch(me) ||
(e->direction_try_other && snd_mixer_selem_has_capture_switch(me));
} else {
has_switch =
snd_mixer_selem_has_capture_switch(me) ||
(e->direction_try_other && snd_mixer_selem_has_playback_switch(me));
}
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
has_volume =
snd_mixer_selem_has_playback_volume(me) ||
(e->direction_try_other && snd_mixer_selem_has_capture_volume(me));
} else {
has_volume =
snd_mixer_selem_has_capture_volume(me) ||
(e->direction_try_other && snd_mixer_selem_has_playback_volume(me));
}
has_enumeration = snd_mixer_selem_is_enumerated(me);
if ((e->required == PA_ALSA_REQUIRED_SWITCH && !has_switch) ||
(e->required == PA_ALSA_REQUIRED_VOLUME && !has_volume) ||
(e->required == PA_ALSA_REQUIRED_ENUMERATION && !has_enumeration))
return -1;
if (e->required == PA_ALSA_REQUIRED_ANY && !(has_switch || has_volume || has_enumeration))
return -1;
if ((e->required_absent == PA_ALSA_REQUIRED_SWITCH && has_switch) ||
(e->required_absent == PA_ALSA_REQUIRED_VOLUME && has_volume) ||
(e->required_absent == PA_ALSA_REQUIRED_ENUMERATION && has_enumeration))
return -1;
if (e->required_absent == PA_ALSA_REQUIRED_ANY && (has_switch || has_volume || has_enumeration))
return -1;
if (e->required_any != PA_ALSA_REQUIRED_IGNORE) {
switch (e->required_any) {
case PA_ALSA_REQUIRED_VOLUME:
e->path->req_any_present |= (e->volume_use != PA_ALSA_VOLUME_IGNORE);
break;
case PA_ALSA_REQUIRED_SWITCH:
e->path->req_any_present |= (e->switch_use != PA_ALSA_SWITCH_IGNORE);
break;
case PA_ALSA_REQUIRED_ENUMERATION:
e->path->req_any_present |= (e->enumeration_use != PA_ALSA_ENUMERATION_IGNORE);
break;
case PA_ALSA_REQUIRED_ANY:
e->path->req_any_present |=
(e->volume_use != PA_ALSA_VOLUME_IGNORE) ||
(e->switch_use != PA_ALSA_SWITCH_IGNORE) ||
(e->enumeration_use != PA_ALSA_ENUMERATION_IGNORE);
break;
default:
pa_assert_not_reached();
}
}
if (e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) {
pa_alsa_option *o;
PA_LLIST_FOREACH(o, e->options) {
e->path->req_any_present |= (o->required_any != PA_ALSA_REQUIRED_IGNORE) &&
(o->alsa_idx >= 0);
if (o->required != PA_ALSA_REQUIRED_IGNORE && o->alsa_idx < 0)
return -1;
if (o->required_absent != PA_ALSA_REQUIRED_IGNORE && o->alsa_idx >= 0)
return -1;
}
}
return 0;
}
static int element_probe(pa_alsa_element *e, snd_mixer_t *m) {
snd_mixer_selem_id_t *sid;
snd_mixer_elem_t *me;
pa_assert(m);
pa_assert(e);
pa_assert(e->path);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
if (e->required != PA_ALSA_REQUIRED_IGNORE)
return -1;
e->switch_use = PA_ALSA_SWITCH_IGNORE;
e->volume_use = PA_ALSA_VOLUME_IGNORE;
e->enumeration_use = PA_ALSA_ENUMERATION_IGNORE;
return 0;
}
if (e->switch_use != PA_ALSA_SWITCH_IGNORE) {
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
if (!snd_mixer_selem_has_playback_switch(me)) {
if (e->direction_try_other && snd_mixer_selem_has_capture_switch(me))
e->direction = PA_ALSA_DIRECTION_INPUT;
else
e->switch_use = PA_ALSA_SWITCH_IGNORE;
}
} else {
if (!snd_mixer_selem_has_capture_switch(me)) {
if (e->direction_try_other && snd_mixer_selem_has_playback_switch(me))
e->direction = PA_ALSA_DIRECTION_OUTPUT;
else
e->switch_use = PA_ALSA_SWITCH_IGNORE;
}
}
if (e->switch_use != PA_ALSA_SWITCH_IGNORE)
e->direction_try_other = false;
}
if (e->volume_use != PA_ALSA_VOLUME_IGNORE) {
if (e->direction == PA_ALSA_DIRECTION_OUTPUT) {
if (!snd_mixer_selem_has_playback_volume(me)) {
if (e->direction_try_other && snd_mixer_selem_has_capture_volume(me))
e->direction = PA_ALSA_DIRECTION_INPUT;
else
e->volume_use = PA_ALSA_VOLUME_IGNORE;
}
} else {
if (!snd_mixer_selem_has_capture_volume(me)) {
if (e->direction_try_other && snd_mixer_selem_has_playback_volume(me))
e->direction = PA_ALSA_DIRECTION_OUTPUT;
else
e->volume_use = PA_ALSA_VOLUME_IGNORE;
}
}
if (e->volume_use != PA_ALSA_VOLUME_IGNORE) {
long min_dB = 0, max_dB = 0;
int r;
e->direction_try_other = false;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
r = snd_mixer_selem_get_playback_volume_range(me, &e->min_volume, &e->max_volume);
else
r = snd_mixer_selem_get_capture_volume_range(me, &e->min_volume, &e->max_volume);
if (r < 0) {
pa_log_warn("Failed to get volume range of %s: %s", e->alsa_name, pa_alsa_strerror(r));
return -1;
}
if (e->min_volume >= e->max_volume) {
pa_log_warn("Your kernel driver is broken: it reports a volume range from %li to %li which makes no sense.", e->min_volume, e->max_volume);
e->volume_use = PA_ALSA_VOLUME_IGNORE;
} else if (e->volume_use == PA_ALSA_VOLUME_CONSTANT &&
(e->min_volume > e->constant_volume || e->max_volume < e->constant_volume)) {
pa_log_warn("Constant volume %li configured for element %s, but the available range is from %li to %li.",
e->constant_volume, e->alsa_name, e->min_volume, e->max_volume);
e->volume_use = PA_ALSA_VOLUME_IGNORE;
} else {
bool is_mono;
pa_channel_position_t p;
if (e->db_fix &&
((e->min_volume > e->db_fix->min_step) ||
(e->max_volume < e->db_fix->max_step))) {
pa_log_warn("The step range of the decibel fix for element %s (%li-%li) doesn't fit to the "
"real hardware range (%li-%li). Disabling the decibel fix.", e->alsa_name,
e->db_fix->min_step, e->db_fix->max_step,
e->min_volume, e->max_volume);
decibel_fix_free(e->db_fix);
e->db_fix = NULL;
}
if (e->db_fix) {
e->has_dB = true;
e->min_volume = e->db_fix->min_step;
e->max_volume = e->db_fix->max_step;
min_dB = e->db_fix->db_values[0];
max_dB = e->db_fix->db_values[e->db_fix->max_step - e->db_fix->min_step];
} else if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
e->has_dB = snd_mixer_selem_get_playback_dB_range(me, &min_dB, &max_dB) >= 0;
else
e->has_dB = snd_mixer_selem_get_capture_dB_range(me, &min_dB, &max_dB) >= 0;
/* Check that the kernel driver returns consistent limits with
* both _get_*_dB_range() and _ask_*_vol_dB(). */
if (e->has_dB && !e->db_fix) {
long min_dB_checked = 0;
long max_dB_checked = 0;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
r = snd_mixer_selem_ask_playback_vol_dB(me, e->min_volume, &min_dB_checked);
else
r = snd_mixer_selem_ask_capture_vol_dB(me, e->min_volume, &min_dB_checked);
if (r < 0) {
pa_log_warn("Failed to query the dB value for %s at volume level %li", e->alsa_name, e->min_volume);
return -1;
}
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
r = snd_mixer_selem_ask_playback_vol_dB(me, e->max_volume, &max_dB_checked);
else
r = snd_mixer_selem_ask_capture_vol_dB(me, e->max_volume, &max_dB_checked);
if (r < 0) {
pa_log_warn("Failed to query the dB value for %s at volume level %li", e->alsa_name, e->max_volume);
return -1;
}
if (min_dB != min_dB_checked || max_dB != max_dB_checked) {
pa_log_warn("Your kernel driver is broken: the reported dB range for %s (from %0.2f dB to %0.2f dB) "
"doesn't match the dB values at minimum and maximum volume levels: %0.2f dB at level %li, "
"%0.2f dB at level %li.",
e->alsa_name,
min_dB / 100.0, max_dB / 100.0,
min_dB_checked / 100.0, e->min_volume, max_dB_checked / 100.0, e->max_volume);
return -1;
}
}
if (e->has_dB) {
e->min_dB = ((double) min_dB) / 100.0;
e->max_dB = ((double) max_dB) / 100.0;
if (min_dB >= max_dB) {
pa_assert(!e->db_fix);
pa_log_warn("Your kernel driver is broken: it reports a volume range from %0.2f dB to %0.2f dB which makes no sense.", e->min_dB, e->max_dB);
e->has_dB = false;
}
}
if (e->volume_limit >= 0) {
if (e->volume_limit <= e->min_volume || e->volume_limit > e->max_volume)
pa_log_warn("Volume limit for element %s of path %s is invalid: %li isn't within the valid range "
"%li-%li. The volume limit is ignored.",
e->alsa_name, e->path->name, e->volume_limit, e->min_volume + 1, e->max_volume);
else {
e->max_volume = e->volume_limit;
if (e->has_dB) {
if (e->db_fix) {
e->db_fix->max_step = e->max_volume;
e->max_dB = ((double) e->db_fix->db_values[e->db_fix->max_step - e->db_fix->min_step]) / 100.0;
} else {
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
r = snd_mixer_selem_ask_playback_vol_dB(me, e->max_volume, &max_dB);
else
r = snd_mixer_selem_ask_capture_vol_dB(me, e->max_volume, &max_dB);
if (r < 0) {
pa_log_warn("Failed to get dB value of %s: %s", e->alsa_name, pa_alsa_strerror(r));
e->has_dB = false;
} else
e->max_dB = ((double) max_dB) / 100.0;
}
}
}
}
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
is_mono = snd_mixer_selem_is_playback_mono(me) > 0;
else
is_mono = snd_mixer_selem_is_capture_mono(me) > 0;
if (is_mono) {
e->n_channels = 1;
if (!e->override_map) {
for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) {
if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN)
continue;
e->masks[alsa_channel_ids[p]][e->n_channels-1] = 0;
}
e->masks[SND_MIXER_SCHN_MONO][e->n_channels-1] = PA_CHANNEL_POSITION_MASK_ALL;
}
e->merged_mask = e->masks[SND_MIXER_SCHN_MONO][e->n_channels-1];
} else {
e->n_channels = 0;
for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) {
if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN)
continue;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
e->n_channels += snd_mixer_selem_has_playback_channel(me, alsa_channel_ids[p]) > 0;
else
e->n_channels += snd_mixer_selem_has_capture_channel(me, alsa_channel_ids[p]) > 0;
}
if (e->n_channels <= 0) {
pa_log_warn("Volume element %s with no channels?", e->alsa_name);
return -1;
}
if (e->n_channels > 2) {
/* FIXME: In some places code like this is used:
*
* e->masks[alsa_channel_ids[p]][e->n_channels-1]
*
* The definition of e->masks is
*
* pa_channel_position_mask_t masks[SND_MIXER_SCHN_LAST + 1][2];
*
* Since the array size is fixed at 2, we obviously
* don't support elements with more than two
* channels... */
pa_log_warn("Volume element %s has %u channels. That's too much! I can't handle that!", e->alsa_name, e->n_channels);
return -1;
}
if (!e->override_map) {
for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) {
bool has_channel;
if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN)
continue;
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
has_channel = snd_mixer_selem_has_playback_channel(me, alsa_channel_ids[p]) > 0;
else
has_channel = snd_mixer_selem_has_capture_channel(me, alsa_channel_ids[p]) > 0;
e->masks[alsa_channel_ids[p]][e->n_channels-1] = has_channel ? PA_CHANNEL_POSITION_MASK(p) : 0;
}
}
e->merged_mask = 0;
for (p = PA_CHANNEL_POSITION_FRONT_LEFT; p < PA_CHANNEL_POSITION_MAX; p++) {
if (alsa_channel_ids[p] == SND_MIXER_SCHN_UNKNOWN)
continue;
e->merged_mask |= e->masks[alsa_channel_ids[p]][e->n_channels-1];
}
}
}
}
}
if (e->switch_use == PA_ALSA_SWITCH_SELECT) {
pa_alsa_option *o;
PA_LLIST_FOREACH(o, e->options)
o->alsa_idx = pa_streq(o->alsa_name, "on") ? 1 : 0;
} else if (e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) {
int n;
pa_alsa_option *o;
if ((n = snd_mixer_selem_get_enum_items(me)) < 0) {
pa_log("snd_mixer_selem_get_enum_items() failed: %s", pa_alsa_strerror(n));
return -1;
}
PA_LLIST_FOREACH(o, e->options) {
int i;
for (i = 0; i < n; i++) {
char buf[128];
if (snd_mixer_selem_get_enum_item_name(me, i, sizeof(buf), buf) < 0)
continue;
if (!pa_streq(buf, o->alsa_name))
continue;
o->alsa_idx = i;
}
}
}
if (check_required(e, me) < 0)
return -1;
return 0;
}
static int jack_probe(pa_alsa_jack *j, snd_mixer_t *m) {
pa_assert(j);
pa_assert(j->path);
j->has_control = pa_alsa_mixer_find(m, j->alsa_name, 0) != NULL;
if (j->has_control) {
if (j->required_absent != PA_ALSA_REQUIRED_IGNORE)
return -1;
if (j->required_any != PA_ALSA_REQUIRED_IGNORE)
j->path->req_any_present = true;
} else {
if (j->required != PA_ALSA_REQUIRED_IGNORE)
return -1;
}
return 0;
}
static pa_alsa_element* element_get(pa_alsa_path *p, const char *section, bool prefixed) {
pa_alsa_element *e;
pa_assert(p);
pa_assert(section);
if (prefixed) {
if (!pa_startswith(section, "Element "))
return NULL;
section += 8;
}
/* This is not an element section, but an enum section? */
if (strchr(section, ':'))
return NULL;
if (p->last_element && pa_streq(p->last_element->alsa_name, section))
return p->last_element;
PA_LLIST_FOREACH(e, p->elements)
if (pa_streq(e->alsa_name, section))
goto finish;
e = pa_xnew0(pa_alsa_element, 1);
e->path = p;
e->alsa_name = pa_xstrdup(section);
e->direction = p->direction;
e->volume_limit = -1;
PA_LLIST_INSERT_AFTER(pa_alsa_element, p->elements, p->last_element, e);
finish:
p->last_element = e;
return e;
}
static pa_alsa_jack* jack_get(pa_alsa_path *p, const char *section) {
pa_alsa_jack *j;
if (!pa_startswith(section, "Jack "))
return NULL;
section += 5;
if (p->last_jack && pa_streq(p->last_jack->name, section))
return p->last_jack;
PA_LLIST_FOREACH(j, p->jacks)
if (pa_streq(j->name, section))
goto finish;
j = pa_xnew0(pa_alsa_jack, 1);
j->state_unplugged = PA_AVAILABLE_NO;
j->state_plugged = PA_AVAILABLE_YES;
j->path = p;
j->name = pa_xstrdup(section);
j->alsa_name = pa_sprintf_malloc("%s Jack", section);
PA_LLIST_INSERT_AFTER(pa_alsa_jack, p->jacks, p->last_jack, j);
finish:
p->last_jack = j;
return j;
}
static pa_alsa_option* option_get(pa_alsa_path *p, const char *section) {
char *en;
const char *on;
pa_alsa_option *o;
pa_alsa_element *e;
if (!pa_startswith(section, "Option "))
return NULL;
section += 7;
/* This is not an enum section, but an element section? */
if (!(on = strchr(section, ':')))
return NULL;
en = pa_xstrndup(section, on - section);
on++;
if (p->last_option &&
pa_streq(p->last_option->element->alsa_name, en) &&
pa_streq(p->last_option->alsa_name, on)) {
pa_xfree(en);
return p->last_option;
}
pa_assert_se(e = element_get(p, en, false));
pa_xfree(en);
PA_LLIST_FOREACH(o, e->options)
if (pa_streq(o->alsa_name, on))
goto finish;
o = pa_xnew0(pa_alsa_option, 1);
o->element = e;
o->alsa_name = pa_xstrdup(on);
o->alsa_idx = -1;
if (p->last_option && p->last_option->element == e)
PA_LLIST_INSERT_AFTER(pa_alsa_option, e->options, p->last_option, o);
else
PA_LLIST_PREPEND(pa_alsa_option, e->options, o);
finish:
p->last_option = o;
return o;
}
static int element_parse_switch(pa_config_parser_state *state) {
pa_alsa_path *p;
pa_alsa_element *e;
pa_assert(state);
p = state->userdata;
if (!(e = element_get(p, state->section, true))) {
pa_log("[%s:%u] Switch makes no sense in '%s'", state->filename, state->lineno, state->section);
return -1;
}
if (pa_streq(state->rvalue, "ignore"))
e->switch_use = PA_ALSA_SWITCH_IGNORE;
else if (pa_streq(state->rvalue, "mute"))
e->switch_use = PA_ALSA_SWITCH_MUTE;
else if (pa_streq(state->rvalue, "off"))
e->switch_use = PA_ALSA_SWITCH_OFF;
else if (pa_streq(state->rvalue, "on"))
e->switch_use = PA_ALSA_SWITCH_ON;
else if (pa_streq(state->rvalue, "select"))
e->switch_use = PA_ALSA_SWITCH_SELECT;
else {
pa_log("[%s:%u] Switch invalid of '%s'", state->filename, state->lineno, state->section);
return -1;
}
return 0;
}
static int element_parse_volume(pa_config_parser_state *state) {
pa_alsa_path *p;
pa_alsa_element *e;
pa_assert(state);
p = state->userdata;
if (!(e = element_get(p, state->section, true))) {
pa_log("[%s:%u] Volume makes no sense in '%s'", state->filename, state->lineno, state->section);
return -1;
}
if (pa_streq(state->rvalue, "ignore"))
e->volume_use = PA_ALSA_VOLUME_IGNORE;
else if (pa_streq(state->rvalue, "merge"))
e->volume_use = PA_ALSA_VOLUME_MERGE;
else if (pa_streq(state->rvalue, "off"))
e->volume_use = PA_ALSA_VOLUME_OFF;
else if (pa_streq(state->rvalue, "zero"))
e->volume_use = PA_ALSA_VOLUME_ZERO;
else {
uint32_t constant;
if (pa_atou(state->rvalue, &constant) >= 0) {
e->volume_use = PA_ALSA_VOLUME_CONSTANT;
e->constant_volume = constant;
} else {
pa_log("[%s:%u] Volume invalid of '%s'", state->filename, state->lineno, state->section);
return -1;
}
}
return 0;
}
static int element_parse_enumeration(pa_config_parser_state *state) {
pa_alsa_path *p;
pa_alsa_element *e;
pa_assert(state);
p = state->userdata;
if (!(e = element_get(p, state->section, true))) {
pa_log("[%s:%u] Enumeration makes no sense in '%s'", state->filename, state->lineno, state->section);
return -1;
}
if (pa_streq(state->rvalue, "ignore"))
e->enumeration_use = PA_ALSA_ENUMERATION_IGNORE;
else if (pa_streq(state->rvalue, "select"))
e->enumeration_use = PA_ALSA_ENUMERATION_SELECT;
else {
pa_log("[%s:%u] Enumeration invalid of '%s'", state->filename, state->lineno, state->section);
return -1;
}
return 0;
}
static int option_parse_priority(pa_config_parser_state *state) {
pa_alsa_path *p;
pa_alsa_option *o;
uint32_t prio;
pa_assert(state);
p = state->userdata;
if (!(o = option_get(p, state->section))) {
pa_log("[%s:%u] Priority makes no sense in '%s'", state->filename, state->lineno, state->section);
return -1;
}
if (pa_atou(state->rvalue, &prio) < 0) {
pa_log("[%s:%u] Priority invalid of '%s'", state->filename, state->lineno, state->section);
return -1;
}
o->priority = prio;
return 0;
}
static int option_parse_name(pa_config_parser_state *state) {
pa_alsa_path *p;
pa_alsa_option *o;
pa_assert(state);
p = state->userdata;
if (!(o = option_get(p, state->section))) {
pa_log("[%s:%u] Name makes no sense in '%s'", state->filename, state->lineno, state->section);
return -1;
}
pa_xfree(o->name);
o->name = pa_xstrdup(state->rvalue);
return 0;
}
static int element_parse_required(pa_config_parser_state *state) {
pa_alsa_path *p;
pa_alsa_element *e;
pa_alsa_option *o;
pa_alsa_jack *j;
pa_alsa_required_t req;
pa_assert(state);
p = state->userdata;
e = element_get(p, state->section, true);
o = option_get(p, state->section);
j = jack_get(p, state->section);
if (!e && !o && !j) {
pa_log("[%s:%u] Required makes no sense in '%s'", state->filename, state->lineno, state->section);
return -1;
}
if (pa_streq(state->rvalue, "ignore"))
req = PA_ALSA_REQUIRED_IGNORE;
else if (pa_streq(state->rvalue, "switch") && e)
req = PA_ALSA_REQUIRED_SWITCH;
else if (pa_streq(state->rvalue, "volume") && e)
req = PA_ALSA_REQUIRED_VOLUME;
else if (pa_streq(state->rvalue, "enumeration"))
req = PA_ALSA_REQUIRED_ENUMERATION;
else if (pa_streq(state->rvalue, "any"))
req = PA_ALSA_REQUIRED_ANY;
else {
pa_log("[%s:%u] Required invalid of '%s'", state->filename, state->lineno, state->section);
return -1;
}
if (pa_streq(state->lvalue, "required-absent")) {
if (e)
e->required_absent = req;
if (o)
o->required_absent = req;
if (j)
j->required_absent = req;
}
else if (pa_streq(state->lvalue, "required-any")) {
if (e) {
e->required_any = req;
e->path->has_req_any |= (req != PA_ALSA_REQUIRED_IGNORE);
}
if (o) {
o->required_any = req;
o->element->path->has_req_any |= (req != PA_ALSA_REQUIRED_IGNORE);
}
if (j) {
j->required_any = req;
j->path->has_req_any |= (req != PA_ALSA_REQUIRED_IGNORE);
}
}
else {
if (e)
e->required = req;
if (o)
o->required = req;
if (j)
j->required = req;
}
return 0;
}
static int element_parse_direction(pa_config_parser_state *state) {
pa_alsa_path *p;
pa_alsa_element *e;
pa_assert(state);
p = state->userdata;
if (!(e = element_get(p, state->section, true))) {
pa_log("[%s:%u] Direction makes no sense in '%s'", state->filename, state->lineno, state->section);
return -1;
}
if (pa_streq(state->rvalue, "playback"))
e->direction = PA_ALSA_DIRECTION_OUTPUT;
else if (pa_streq(state->rvalue, "capture"))
e->direction = PA_ALSA_DIRECTION_INPUT;
else {
pa_log("[%s:%u] Direction invalid of '%s'", state->filename, state->lineno, state->section);
return -1;
}
return 0;
}
static int element_parse_direction_try_other(pa_config_parser_state *state) {
pa_alsa_path *p;
pa_alsa_element *e;
int yes;
pa_assert(state);
p = state->userdata;
if (!(e = element_get(p, state->section, true))) {
pa_log("[%s:%u] Direction makes no sense in '%s'", state->filename, state->lineno, state->section);
return -1;
}
if ((yes = pa_parse_boolean(state->rvalue)) < 0) {
pa_log("[%s:%u] Direction invalid of '%s'", state->filename, state->lineno, state->section);
return -1;
}
e->direction_try_other = !!yes;
return 0;
}
static int element_parse_volume_limit(pa_config_parser_state *state) {
pa_alsa_path *p;
pa_alsa_element *e;
long volume_limit;
pa_assert(state);
p = state->userdata;
if (!(e = element_get(p, state->section, true))) {
pa_log("[%s:%u] volume-limit makes no sense in '%s'", state->filename, state->lineno, state->section);
return -1;
}
if (pa_atol(state->rvalue, &volume_limit) < 0 || volume_limit < 0) {
pa_log("[%s:%u] Invalid value for volume-limit", state->filename, state->lineno);
return -1;
}
e->volume_limit = volume_limit;
return 0;
}
static pa_channel_position_mask_t parse_mask(const char *m) {
pa_channel_position_mask_t v;
if (pa_streq(m, "all-left"))
v = PA_CHANNEL_POSITION_MASK_LEFT;
else if (pa_streq(m, "all-right"))
v = PA_CHANNEL_POSITION_MASK_RIGHT;
else if (pa_streq(m, "all-center"))
v = PA_CHANNEL_POSITION_MASK_CENTER;
else if (pa_streq(m, "all-front"))
v = PA_CHANNEL_POSITION_MASK_FRONT;
else if (pa_streq(m, "all-rear"))
v = PA_CHANNEL_POSITION_MASK_REAR;
else if (pa_streq(m, "all-side"))
v = PA_CHANNEL_POSITION_MASK_SIDE_OR_TOP_CENTER;
else if (pa_streq(m, "all-top"))
v = PA_CHANNEL_POSITION_MASK_TOP;
else if (pa_streq(m, "all-no-lfe"))
v = PA_CHANNEL_POSITION_MASK_ALL ^ PA_CHANNEL_POSITION_MASK(PA_CHANNEL_POSITION_LFE);
else if (pa_streq(m, "all"))
v = PA_CHANNEL_POSITION_MASK_ALL;
else {
pa_channel_position_t p;
if ((p = pa_channel_position_from_string(m)) == PA_CHANNEL_POSITION_INVALID)
return 0;
v = PA_CHANNEL_POSITION_MASK(p);
}
return v;
}
static int element_parse_override_map(pa_config_parser_state *state) {
pa_alsa_path *p;
pa_alsa_element *e;
const char *split_state = NULL;
unsigned i = 0;
char *n;
pa_assert(state);
p = state->userdata;
if (!(e = element_get(p, state->section, true))) {
pa_log("[%s:%u] Override map makes no sense in '%s'", state->filename, state->lineno, state->section);
return -1;
}
while ((n = pa_split(state->rvalue, ",", &split_state))) {
pa_channel_position_mask_t m;
if (!*n)
m = 0;
else {
if ((m = parse_mask(n)) == 0) {
pa_log("[%s:%u] Override map '%s' invalid in '%s'", state->filename, state->lineno, n, state->section);
pa_xfree(n);
return -1;
}
}
if (pa_streq(state->lvalue, "override-map.1"))
e->masks[i++][0] = m;
else
e->masks[i++][1] = m;
/* Later on we might add override-map.3 and so on here ... */
pa_xfree(n);
}
e->override_map = true;
return 0;
}
static int jack_parse_state(pa_config_parser_state *state) {
pa_alsa_path *p;
pa_alsa_jack *j;
pa_available_t pa;
pa_assert(state);
p = state->userdata;
if (!(j = jack_get(p, state->section))) {
pa_log("[%s:%u] state makes no sense in '%s'", state->filename, state->lineno, state->section);
return -1;
}
if (pa_streq(state->rvalue, "yes"))
pa = PA_AVAILABLE_YES;
else if (pa_streq(state->rvalue, "no"))
pa = PA_AVAILABLE_NO;
else if (pa_streq(state->rvalue, "unknown"))
pa = PA_AVAILABLE_UNKNOWN;
else {
pa_log("[%s:%u] state must be 'yes', 'no' or 'unknown' in '%s'", state->filename, state->lineno, state->section);
return -1;
}
if (pa_streq(state->lvalue, "state.unplugged"))
j->state_unplugged = pa;
else {
j->state_plugged = pa;
pa_assert(pa_streq(state->lvalue, "state.plugged"));
}
return 0;
}
static int element_set_option(pa_alsa_element *e, snd_mixer_t *m, int alsa_idx) {
snd_mixer_selem_id_t *sid;
snd_mixer_elem_t *me;
int r;
pa_assert(e);
pa_assert(m);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return -1;
}
if (e->switch_use == PA_ALSA_SWITCH_SELECT) {
if (e->direction == PA_ALSA_DIRECTION_OUTPUT)
r = snd_mixer_selem_set_playback_switch_all(me, alsa_idx);
else
r = snd_mixer_selem_set_capture_switch_all(me, alsa_idx);
if (r < 0)
pa_log_warn("Failed to set switch of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
} else {
pa_assert(e->enumeration_use == PA_ALSA_ENUMERATION_SELECT);
if ((r = snd_mixer_selem_set_enum_item(me, 0, alsa_idx)) < 0)
pa_log_warn("Failed to set enumeration of %s: %s", e->alsa_name, pa_alsa_strerror(errno));
}
return r;
}
static int setting_select(pa_alsa_setting *s, snd_mixer_t *m) {
pa_alsa_option *o;
uint32_t idx;
pa_assert(s);
pa_assert(m);
PA_IDXSET_FOREACH(o, s->options, idx)
element_set_option(o->element, m, o->alsa_idx);
return 0;
}
static int option_verify(pa_alsa_option *o) {
static const struct description_map well_known_descriptions[] = {
{ "input", N_("Input") },
{ "input-docking", N_("Docking Station Input") },
{ "input-docking-microphone", N_("Docking Station Microphone") },
{ "input-docking-linein", N_("Docking Station Line In") },
{ "input-linein", N_("Line In") },
{ "input-microphone", N_("Microphone") },
{ "input-microphone-front", N_("Front Microphone") },
{ "input-microphone-rear", N_("Rear Microphone") },
{ "input-microphone-external", N_("External Microphone") },
{ "input-microphone-internal", N_("Internal Microphone") },
{ "input-radio", N_("Radio") },
{ "input-video", N_("Video") },
{ "input-agc-on", N_("Automatic Gain Control") },
{ "input-agc-off", N_("No Automatic Gain Control") },
{ "input-boost-on", N_("Boost") },
{ "input-boost-off", N_("No Boost") },
{ "output-amplifier-on", N_("Amplifier") },
{ "output-amplifier-off", N_("No Amplifier") },
{ "output-bass-boost-on", N_("Bass Boost") },
{ "output-bass-boost-off", N_("No Bass Boost") },
{ "output-speaker", N_("Speaker") },
{ "output-headphones", N_("Headphones") }
};
pa_assert(o);
if (!o->name) {
pa_log("No name set for option %s", o->alsa_name);
return -1;
}
if (o->element->enumeration_use != PA_ALSA_ENUMERATION_SELECT &&
o->element->switch_use != PA_ALSA_SWITCH_SELECT) {
pa_log("Element %s of option %s not set for select.", o->element->alsa_name, o->name);
return -1;
}
if (o->element->switch_use == PA_ALSA_SWITCH_SELECT &&
!pa_streq(o->alsa_name, "on") &&
!pa_streq(o->alsa_name, "off")) {
pa_log("Switch %s options need be named off or on ", o->element->alsa_name);
return -1;
}
if (!o->description)
o->description = pa_xstrdup(lookup_description(o->name,
well_known_descriptions,
PA_ELEMENTSOF(well_known_descriptions)));
if (!o->description)
o->description = pa_xstrdup(o->name);
return 0;
}
static int element_verify(pa_alsa_element *e) {
pa_alsa_option *o;
pa_assert(e);
// pa_log_debug("Element %s, path %s: r=%d, r-any=%d, r-abs=%d", e->alsa_name, e->path->name, e->required, e->required_any, e->required_absent);
if ((e->required != PA_ALSA_REQUIRED_IGNORE && e->required == e->required_absent) ||
(e->required_any != PA_ALSA_REQUIRED_IGNORE && e->required_any == e->required_absent) ||
(e->required_absent == PA_ALSA_REQUIRED_ANY && e->required_any != PA_ALSA_REQUIRED_IGNORE) ||
(e->required_absent == PA_ALSA_REQUIRED_ANY && e->required != PA_ALSA_REQUIRED_IGNORE)) {
pa_log("Element %s cannot be required and absent at the same time.", e->alsa_name);
return -1;
}
if (e->switch_use == PA_ALSA_SWITCH_SELECT && e->enumeration_use == PA_ALSA_ENUMERATION_SELECT) {
pa_log("Element %s cannot set select for both switch and enumeration.", e->alsa_name);
return -1;
}
PA_LLIST_FOREACH(o, e->options)
if (option_verify(o) < 0)
return -1;
return 0;
}
static int path_verify(pa_alsa_path *p) {
static const struct description_map well_known_descriptions[] = {
{ "analog-input", N_("Analog Input") },
{ "analog-input-microphone", N_("Microphone") },
{ "analog-input-microphone-front", N_("Front Microphone") },
{ "analog-input-microphone-rear", N_("Rear Microphone") },
{ "analog-input-microphone-dock", N_("Dock Microphone") },
{ "analog-input-microphone-internal", N_("Internal Microphone") },
{ "analog-input-microphone-headset", N_("Headset Microphone") },
{ "analog-input-linein", N_("Line In") },
{ "analog-input-radio", N_("Radio") },
{ "analog-input-video", N_("Video") },
{ "analog-output", N_("Analog Output") },
{ "analog-output-headphones", N_("Headphones") },
{ "analog-output-lfe-on-mono", N_("LFE on Separate Mono Output") },
{ "analog-output-lineout", N_("Line Out") },
{ "analog-output-mono", N_("Analog Mono Output") },
{ "analog-output-speaker", N_("Speakers") },
{ "hdmi-output", N_("HDMI / DisplayPort") },
{ "iec958-stereo-output", N_("Digital Output (S/PDIF)") },
{ "iec958-stereo-input", N_("Digital Input (S/PDIF)") },
{ "iec958-passthrough-output", N_("Digital Passthrough (S/PDIF)") }
};
pa_alsa_element *e;
pa_assert(p);
PA_LLIST_FOREACH(e, p->elements)
if (element_verify(e) < 0)
return -1;
if (!p->description)
p->description = pa_xstrdup(lookup_description(p->description_key ? p->description_key : p->name,
well_known_descriptions,
PA_ELEMENTSOF(well_known_descriptions)));
if (!p->description) {
if (p->description_key)
pa_log_warn("Path %s: Unrecognized description key: %s", p->name, p->description_key);
p->description = pa_xstrdup(p->name);
}
return 0;
}
static const char *get_default_paths_dir(void) {
if (pa_run_from_build_tree())
return PA_SRCDIR "/modules/alsa/mixer/paths/";
else
return PA_ALSA_PATHS_DIR;
}
pa_alsa_path* pa_alsa_path_new(const char *paths_dir, const char *fname, pa_alsa_direction_t direction) {
pa_alsa_path *p;
char *fn;
int r;
const char *n;
bool mute_during_activation = false;
pa_config_item items[] = {
/* [General] */
{ "priority", pa_config_parse_unsigned, NULL, "General" },
{ "description-key", pa_config_parse_string, NULL, "General" },
{ "description", pa_config_parse_string, NULL, "General" },
{ "mute-during-activation", pa_config_parse_bool, NULL, "General" },
{ "eld-device", pa_config_parse_int, NULL, "General" },
/* [Option ...] */
{ "priority", option_parse_priority, NULL, NULL },
{ "name", option_parse_name, NULL, NULL },
/* [Jack ...] */
{ "state.plugged", jack_parse_state, NULL, NULL },
{ "state.unplugged", jack_parse_state, NULL, NULL },
/* [Element ...] */
{ "switch", element_parse_switch, NULL, NULL },
{ "volume", element_parse_volume, NULL, NULL },
{ "enumeration", element_parse_enumeration, NULL, NULL },
{ "override-map.1", element_parse_override_map, NULL, NULL },
{ "override-map.2", element_parse_override_map, NULL, NULL },
/* ... later on we might add override-map.3 and so on here ... */
{ "required", element_parse_required, NULL, NULL },
{ "required-any", element_parse_required, NULL, NULL },
{ "required-absent", element_parse_required, NULL, NULL },
{ "direction", element_parse_direction, NULL, NULL },
{ "direction-try-other", element_parse_direction_try_other, NULL, NULL },
{ "volume-limit", element_parse_volume_limit, NULL, NULL },
{ NULL, NULL, NULL, NULL }
};
pa_assert(fname);
p = pa_xnew0(pa_alsa_path, 1);
n = pa_path_get_filename(fname);
p->name = pa_xstrndup(n, strcspn(n, "."));
p->proplist = pa_proplist_new();
p->direction = direction;
p->eld_device = -1;
items[0].data = &p->priority;
items[1].data = &p->description_key;
items[2].data = &p->description;
items[3].data = &mute_during_activation;
items[4].data = &p->eld_device;
if (!paths_dir)
paths_dir = get_default_paths_dir();
fn = pa_maybe_prefix_path(fname, paths_dir);
r = pa_config_parse(fn, NULL, items, p->proplist, p);
pa_xfree(fn);
if (r < 0)
goto fail;
p->mute_during_activation = mute_during_activation;
if (path_verify(p) < 0)
goto fail;
return p;
fail:
pa_alsa_path_free(p);
return NULL;
}
pa_alsa_path *pa_alsa_path_synthesize(const char *element, pa_alsa_direction_t direction) {
pa_alsa_path *p;
pa_alsa_element *e;
pa_assert(element);
p = pa_xnew0(pa_alsa_path, 1);
p->name = pa_xstrdup(element);
p->direction = direction;
e = pa_xnew0(pa_alsa_element, 1);
e->path = p;
e->alsa_name = pa_xstrdup(element);
e->direction = direction;
e->volume_limit = -1;
e->switch_use = PA_ALSA_SWITCH_MUTE;
e->volume_use = PA_ALSA_VOLUME_MERGE;
PA_LLIST_PREPEND(pa_alsa_element, p->elements, e);
p->last_element = e;
return p;
}
static bool element_drop_unsupported(pa_alsa_element *e) {
pa_alsa_option *o, *n;
pa_assert(e);
for (o = e->options; o; o = n) {
n = o->next;
if (o->alsa_idx < 0) {
PA_LLIST_REMOVE(pa_alsa_option, e->options, o);
option_free(o);
}
}
return
e->switch_use != PA_ALSA_SWITCH_IGNORE ||
e->volume_use != PA_ALSA_VOLUME_IGNORE ||
e->enumeration_use != PA_ALSA_ENUMERATION_IGNORE;
}
static void path_drop_unsupported(pa_alsa_path *p) {
pa_alsa_element *e, *n;
pa_assert(p);
for (e = p->elements; e; e = n) {
n = e->next;
if (!element_drop_unsupported(e)) {
PA_LLIST_REMOVE(pa_alsa_element, p->elements, e);
element_free(e);
}
}
}
static void path_make_options_unique(pa_alsa_path *p) {
pa_alsa_element *e;
pa_alsa_option *o, *u;
PA_LLIST_FOREACH(e, p->elements) {
PA_LLIST_FOREACH(o, e->options) {
unsigned i;
char *m;
for (u = o->next; u; u = u->next)
if (pa_streq(u->name, o->name))
break;
if (!u)
continue;
m = pa_xstrdup(o->name);
/* OK, this name is not unique, hence let's rename */
for (i = 1, u = o; u; u = u->next) {
char *nn, *nd;
if (!pa_streq(u->name, m))
continue;
nn = pa_sprintf_malloc("%s-%u", m, i);
pa_xfree(u->name);
u->name = nn;
nd = pa_sprintf_malloc("%s %u", u->description, i);
pa_xfree(u->description);
u->description = nd;
i++;
}
pa_xfree(m);
}
}
}
static bool element_create_settings(pa_alsa_element *e, pa_alsa_setting *template) {
pa_alsa_option *o;
for (; e; e = e->next)
if (e->switch_use == PA_ALSA_SWITCH_SELECT ||
e->enumeration_use == PA_ALSA_ENUMERATION_SELECT)
break;
if (!e)
return false;
for (o = e->options; o; o = o->next) {
pa_alsa_setting *s;
if (template) {
s = pa_xnewdup(pa_alsa_setting, template, 1);
s->options = pa_idxset_copy(template->options, NULL);
s->name = pa_sprintf_malloc("%s+%s", template->name, o->name);
s->description =
(template->description[0] && o->description[0])
? pa_sprintf_malloc("%s / %s", template->description, o->description)
: (template->description[0]
? pa_xstrdup(template->description)
: pa_xstrdup(o->description));
s->priority = PA_MAX(template->priority, o->priority);
} else {
s = pa_xnew0(pa_alsa_setting, 1);
s->options = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
s->name = pa_xstrdup(o->name);
s->description = pa_xstrdup(o->description);
s->priority = o->priority;
}
pa_idxset_put(s->options, o, NULL);
if (element_create_settings(e->next, s))
/* This is not a leaf, so let's get rid of it */
setting_free(s);
else {
/* This is a leaf, so let's add it */
PA_LLIST_INSERT_AFTER(pa_alsa_setting, e->path->settings, e->path->last_setting, s);
e->path->last_setting = s;
}
}
return true;
}
static void path_create_settings(pa_alsa_path *p) {
pa_assert(p);
element_create_settings(p->elements, NULL);
}
int pa_alsa_path_probe(pa_alsa_path *p, snd_mixer_t *m, bool ignore_dB) {
pa_alsa_element *e;
pa_alsa_jack *j;
double min_dB[PA_CHANNEL_POSITION_MAX], max_dB[PA_CHANNEL_POSITION_MAX];
pa_channel_position_t t;
pa_channel_position_mask_t path_volume_channels = 0;
pa_assert(p);
pa_assert(m);
if (p->probed)
return p->supported ? 0 : -1;
p->probed = true;
pa_zero(min_dB);
pa_zero(max_dB);
pa_log_debug("Probing path '%s'", p->name);
PA_LLIST_FOREACH(j, p->jacks) {
if (jack_probe(j, m) < 0) {
p->supported = false;
pa_log_debug("Probe of jack '%s' failed.", j->alsa_name);
return -1;
}
pa_log_debug("Probe of jack '%s' succeeded (%s)", j->alsa_name, j->has_control ? "found!" : "not found");
}
PA_LLIST_FOREACH(e, p->elements) {
if (element_probe(e, m) < 0) {
p->supported = false;
pa_log_debug("Probe of element '%s' failed.", e->alsa_name);
return -1;
}
pa_log_debug("Probe of element '%s' succeeded (volume=%d, switch=%d, enumeration=%d).", e->alsa_name, e->volume_use, e->switch_use, e->enumeration_use);
if (ignore_dB)
e->has_dB = false;
if (e->volume_use == PA_ALSA_VOLUME_MERGE) {
if (!p->has_volume) {
p->min_volume = e->min_volume;
p->max_volume = e->max_volume;
}
if (e->has_dB) {
if (!p->has_volume) {
for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++)
if (PA_CHANNEL_POSITION_MASK(t) & e->merged_mask) {
min_dB[t] = e->min_dB;
max_dB[t] = e->max_dB;
path_volume_channels |= PA_CHANNEL_POSITION_MASK(t);
}
p->has_dB = true;
} else {
if (p->has_dB) {
for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++)
if (PA_CHANNEL_POSITION_MASK(t) & e->merged_mask) {
min_dB[t] += e->min_dB;
max_dB[t] += e->max_dB;
path_volume_channels |= PA_CHANNEL_POSITION_MASK(t);
}
} else {
/* Hmm, there's another element before us
* which cannot do dB volumes, so we we need
* to 'neutralize' this slider */
e->volume_use = PA_ALSA_VOLUME_ZERO;
pa_log_info("Zeroing volume of '%s' on path '%s'", e->alsa_name, p->name);
}
}
} else if (p->has_volume) {
/* We can't use this volume, so let's ignore it */
e->volume_use = PA_ALSA_VOLUME_IGNORE;
pa_log_info("Ignoring volume of '%s' on path '%s' (missing dB info)", e->alsa_name, p->name);
}
p->has_volume = true;
}
if (e->switch_use == PA_ALSA_SWITCH_MUTE)
p->has_mute = true;
}
if (p->has_req_any && !p->req_any_present) {
p->supported = false;
pa_log_debug("Skipping path '%s', none of required-any elements preset.", p->name);
return -1;
}
path_drop_unsupported(p);
path_make_options_unique(p);
path_create_settings(p);
p->supported = true;
p->min_dB = INFINITY;
p->max_dB = -INFINITY;
for (t = 0; t < PA_CHANNEL_POSITION_MAX; t++) {
if (path_volume_channels & PA_CHANNEL_POSITION_MASK(t)) {
if (p->min_dB > min_dB[t])
p->min_dB = min_dB[t];
if (p->max_dB < max_dB[t])
p->max_dB = max_dB[t];
}
}
return 0;
}
void pa_alsa_setting_dump(pa_alsa_setting *s) {
pa_assert(s);
pa_log_debug("Setting %s (%s) priority=%u",
s->name,
pa_strnull(s->description),
s->priority);
}
void pa_alsa_jack_dump(pa_alsa_jack *j) {
pa_assert(j);
pa_log_debug("Jack %s, alsa_name='%s', detection %s", j->name, j->alsa_name, j->has_control ? "possible" : "unavailable");
}
void pa_alsa_option_dump(pa_alsa_option *o) {
pa_assert(o);
pa_log_debug("Option %s (%s/%s) index=%i, priority=%u",
o->alsa_name,
pa_strnull(o->name),
pa_strnull(o->description),
o->alsa_idx,
o->priority);
}
void pa_alsa_element_dump(pa_alsa_element *e) {
pa_alsa_option *o;
pa_assert(e);
pa_log_debug("Element %s, direction=%i, switch=%i, volume=%i, volume_limit=%li, enumeration=%i, required=%i, required_any=%i, required_absent=%i, mask=0x%llx, n_channels=%u, override_map=%s",
e->alsa_name,
e->direction,
e->switch_use,
e->volume_use,
e->volume_limit,
e->enumeration_use,
e->required,
e->required_any,
e->required_absent,
(long long unsigned) e->merged_mask,
e->n_channels,
pa_yes_no(e->override_map));
PA_LLIST_FOREACH(o, e->options)
pa_alsa_option_dump(o);
}
void pa_alsa_path_dump(pa_alsa_path *p) {
pa_alsa_element *e;
pa_alsa_jack *j;
pa_alsa_setting *s;
pa_assert(p);
pa_log_debug("Path %s (%s), direction=%i, priority=%u, probed=%s, supported=%s, has_mute=%s, has_volume=%s, "
"has_dB=%s, min_volume=%li, max_volume=%li, min_dB=%g, max_dB=%g",
p->name,
pa_strnull(p->description),
p->direction,
p->priority,
pa_yes_no(p->probed),
pa_yes_no(p->supported),
pa_yes_no(p->has_mute),
pa_yes_no(p->has_volume),
pa_yes_no(p->has_dB),
p->min_volume, p->max_volume,
p->min_dB, p->max_dB);
PA_LLIST_FOREACH(e, p->elements)
pa_alsa_element_dump(e);
PA_LLIST_FOREACH(j, p->jacks)
pa_alsa_jack_dump(j);
PA_LLIST_FOREACH(s, p->settings)
pa_alsa_setting_dump(s);
}
static void element_set_callback(pa_alsa_element *e, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
snd_mixer_selem_id_t *sid;
snd_mixer_elem_t *me;
pa_assert(e);
pa_assert(m);
pa_assert(cb);
SELEM_INIT(sid, e->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", e->alsa_name);
return;
}
snd_mixer_elem_set_callback(me, cb);
snd_mixer_elem_set_callback_private(me, userdata);
}
void pa_alsa_path_set_callback(pa_alsa_path *p, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
pa_alsa_element *e;
pa_assert(p);
pa_assert(m);
pa_assert(cb);
PA_LLIST_FOREACH(e, p->elements)
element_set_callback(e, m, cb, userdata);
}
void pa_alsa_path_set_set_callback(pa_alsa_path_set *ps, snd_mixer_t *m, snd_mixer_elem_callback_t cb, void *userdata) {
pa_alsa_path *p;
void *state;
pa_assert(ps);
pa_assert(m);
pa_assert(cb);
PA_HASHMAP_FOREACH(p, ps->paths, state)
pa_alsa_path_set_callback(p, m, cb, userdata);
}
static pa_alsa_path *profile_set_get_path(pa_alsa_profile_set *ps, const char *path_name) {
pa_alsa_path *path;
pa_assert(ps);
pa_assert(path_name);
if ((path = pa_hashmap_get(ps->output_paths, path_name)))
return path;
return pa_hashmap_get(ps->input_paths, path_name);
}
static void profile_set_add_path(pa_alsa_profile_set *ps, pa_alsa_path *path) {
pa_assert(ps);
pa_assert(path);
switch (path->direction) {
case PA_ALSA_DIRECTION_OUTPUT:
pa_assert_se(pa_hashmap_put(ps->output_paths, path->name, path) >= 0);
break;
case PA_ALSA_DIRECTION_INPUT:
pa_assert_se(pa_hashmap_put(ps->input_paths, path->name, path) >= 0);
break;
default:
pa_assert_not_reached();
}
}
pa_alsa_path_set *pa_alsa_path_set_new(pa_alsa_mapping *m, pa_alsa_direction_t direction, const char *paths_dir) {
pa_alsa_path_set *ps;
char **pn = NULL, **en = NULL, **ie;
pa_alsa_decibel_fix *db_fix;
void *state, *state2;
pa_assert(m);
pa_assert(m->profile_set);
pa_assert(m->profile_set->decibel_fixes);
pa_assert(direction == PA_ALSA_DIRECTION_OUTPUT || direction == PA_ALSA_DIRECTION_INPUT);
if (m->direction != PA_ALSA_DIRECTION_ANY && m->direction != direction)
return NULL;
ps = pa_xnew0(pa_alsa_path_set, 1);
ps->direction = direction;
ps->paths = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
if (direction == PA_ALSA_DIRECTION_OUTPUT)
pn = m->output_path_names;
else
pn = m->input_path_names;
if (pn) {
char **in;
for (in = pn; *in; in++) {
pa_alsa_path *p = NULL;
bool duplicate = false;
char **kn;
for (kn = pn; kn < in; kn++)
if (pa_streq(*kn, *in)) {
duplicate = true;
break;
}
if (duplicate)
continue;
p = profile_set_get_path(m->profile_set, *in);
if (p && p->direction != direction) {
pa_log("Configuration error: Path %s is used both as an input and as an output path.", p->name);
goto fail;
}
if (!p) {
char *fn = pa_sprintf_malloc("%s.conf", *in);
p = pa_alsa_path_new(paths_dir, fn, direction);
pa_xfree(fn);
if (p)
profile_set_add_path(m->profile_set, p);
}
if (p)
pa_hashmap_put(ps->paths, p, p);
}
goto finish;
}
if (direction == PA_ALSA_DIRECTION_OUTPUT)
en = m->output_element;
else
en = m->input_element;
if (!en)
goto fail;
for (ie = en; *ie; ie++) {
char **je;
pa_alsa_path *p;
p = pa_alsa_path_synthesize(*ie, direction);
/* Mark all other passed elements for require-absent */
for (je = en; *je; je++) {
pa_alsa_element *e;
if (je == ie)
continue;
e = pa_xnew0(pa_alsa_element, 1);
e->path = p;
e->alsa_name = pa_xstrdup(*je);
e->direction = direction;
e->required_absent = PA_ALSA_REQUIRED_ANY;
e->volume_limit = -1;
PA_LLIST_INSERT_AFTER(pa_alsa_element, p->elements, p->last_element, e);
p->last_element = e;
}
pa_hashmap_put(ps->paths, *ie, p);
}
finish:
/* Assign decibel fixes to elements. */
PA_HASHMAP_FOREACH(db_fix, m->profile_set->decibel_fixes, state) {
pa_alsa_path *p;
PA_HASHMAP_FOREACH(p, ps->paths, state2) {
pa_alsa_element *e;
PA_LLIST_FOREACH(e, p->elements) {
if (e->volume_use != PA_ALSA_VOLUME_IGNORE && pa_streq(db_fix->name, e->alsa_name)) {
/* The profile set that contains the dB fix may be freed
* before the element, so we have to copy the dB fix
* object. */
e->db_fix = pa_xnewdup(pa_alsa_decibel_fix, db_fix, 1);
e->db_fix->profile_set = NULL;
e->db_fix->name = pa_xstrdup(db_fix->name);
e->db_fix->db_values = pa_xmemdup(db_fix->db_values, (db_fix->max_step - db_fix->min_step + 1) * sizeof(long));
}
}
}
}
return ps;
fail:
if (ps)
pa_alsa_path_set_free(ps);
return NULL;
}
void pa_alsa_path_set_dump(pa_alsa_path_set *ps) {
pa_alsa_path *p;
void *state;
pa_assert(ps);
pa_log_debug("Path Set %p, direction=%i",
(void*) ps,
ps->direction);
PA_HASHMAP_FOREACH(p, ps->paths, state)
pa_alsa_path_dump(p);
}
static bool options_have_option(pa_alsa_option *options, const char *alsa_name) {
pa_alsa_option *o;
pa_assert(options);
pa_assert(alsa_name);
PA_LLIST_FOREACH(o, options) {
if (pa_streq(o->alsa_name, alsa_name))
return true;
}
return false;
}
static bool enumeration_is_subset(pa_alsa_option *a_options, pa_alsa_option *b_options) {
pa_alsa_option *oa, *ob;
if (!a_options) return true;
if (!b_options) return false;
/* If there is an option A offers that B does not, then A is not a subset of B. */
PA_LLIST_FOREACH(oa, a_options) {
bool found = false;
PA_LLIST_FOREACH(ob, b_options) {
if (pa_streq(oa->alsa_name, ob->alsa_name)) {
found = true;
break;
}
}
if (!found)
return false;
}
return true;
}
/**
* Compares two elements to see if a is a subset of b
*/
static bool element_is_subset(pa_alsa_element *a, pa_alsa_element *b, snd_mixer_t *m) {
pa_assert(a);
pa_assert(b);
pa_assert(m);
/* General rules:
* Every state is a subset of itself (with caveats for volume_limits and options)
* IGNORE is a subset of every other state */
/* Check the volume_use */
if (a->volume_use != PA_ALSA_VOLUME_IGNORE) {
/* "Constant" is subset of "Constant" only when their constant values are equal */
if (a->volume_use == PA_ALSA_VOLUME_CONSTANT && b->volume_use == PA_ALSA_VOLUME_CONSTANT && a->constant_volume != b->constant_volume)
return false;
/* Different volume uses when b is not "Merge" means we are definitely not a subset */
if (a->volume_use != b->volume_use && b->volume_use != PA_ALSA_VOLUME_MERGE)
return false;
/* "Constant" is a subset of "Merge", if there is not a "volume-limit" in "Merge" below the actual constant.
* "Zero" and "Off" are just special cases of "Constant" when comparing to "Merge"
* "Merge" with a "volume-limit" is a subset of "Merge" without a "volume-limit" or with a higher "volume-limit" */
if (b->volume_use == PA_ALSA_VOLUME_MERGE && b->volume_limit >= 0) {
long a_limit;
if (a->volume_use == PA_ALSA_VOLUME_CONSTANT)
a_limit = a->constant_volume;
else if (a->volume_use == PA_ALSA_VOLUME_ZERO) {
long dB = 0;
if (a->db_fix) {
int rounding = (a->direction == PA_ALSA_DIRECTION_OUTPUT ? +1 : -1);
a_limit = decibel_fix_get_step(a->db_fix, &dB, rounding);
} else {
snd_mixer_selem_id_t *sid;
snd_mixer_elem_t *me;
SELEM_INIT(sid, a->alsa_name);
if (!(me = snd_mixer_find_selem(m, sid))) {
pa_log_warn("Element %s seems to have disappeared.", a->alsa_name);
return false;
}
if (a->direction == PA_ALSA_DIRECTION_OUTPUT) {
if (snd_mixer_selem_ask_playback_dB_vol(me, dB, +1, &a_limit) < 0)
return false;
} else {
if (snd_mixer_selem_ask_capture_dB_vol(me, dB, -1, &a_limit) < 0)
return false;
}
}
} else if (a->volume_use == PA_ALSA_VOLUME_OFF)
a_limit = a->min_volume;
else if (a->volume_use == PA_ALSA_VOLUME_MERGE)
a_limit = a->volume_limit;
else
pa_assert_not_reached();
if (a_limit > b->volume_limit)
return false;
}
if (a->volume_use == PA_ALSA_VOLUME_MERGE) {
int s;
/* If override-maps are different, they're not subsets */
if (a->n_channels != b->n_channels)
return false;
for (s = 0; s <= SND_MIXER_SCHN_LAST; s++)
if (a->masks[s][a->n_channels-1] != b->masks[s][b->n_channels-1]) {
pa_log_debug("Element %s is not a subset - mask a: 0x%" PRIx64 ", mask b: 0x%" PRIx64 ", at channel %d",
a->alsa_name, a->masks[s][a->n_channels-1], b->masks[s][b->n_channels-1], s);
return false;
}
}
}
if (a->switch_use != PA_ALSA_SWITCH_IGNORE) {
/* "On" is a subset of "Mute".
* "Off" is a subset of "Mute".
* "On" is a subset of "Select", if there is an "Option:On" in B.
* "Off" is a subset of "Select", if there is an "Option:Off" in B.
* "Select" is a subset of "Select", if they have the same options (is this always true?). */
if (a->switch_use != b->switch_use) {
if (a->switch_use == PA_ALSA_SWITCH_SELECT || a->switch_use == PA_ALSA_SWITCH_MUTE
|| b->switch_use == PA_ALSA_SWITCH_OFF || b->switch_use == PA_ALSA_SWITCH_ON)
return false;
if (b->switch_use == PA_ALSA_SWITCH_SELECT) {
if (a->switch_use == PA_ALSA_SWITCH_ON) {
if (!options_have_option(b->options, "on"))
return false;
} else if (a->switch_use == PA_ALSA_SWITCH_OFF) {
if (!options_have_option(b->options, "off"))
return false;
}
}
} else if (a->switch_use == PA_ALSA_SWITCH_SELECT) {
if (!enumeration_is_subset(a->options, b->options))
return false;
}
}
if (a->enumeration_use != PA_ALSA_ENUMERATION_IGNORE) {
if (b->enumeration_use == PA_ALSA_ENUMERATION_IGNORE)
return false;
if (!enumeration_is_subset(a->options, b->options))
return false;
}
return true;
}
static void path_set_condense(pa_alsa_path_set *ps, snd_mixer_t *m) {
pa_alsa_path *p;
void *state;
pa_assert(ps);
pa_assert(m);
/* If we only have one path, then don't bother */
if (pa_hashmap_size(ps->paths) < 2)
return;
PA_HASHMAP_FOREACH(p, ps->paths, state) {
pa_alsa_path *p2;
void *state2;
PA_HASHMAP_FOREACH(p2, ps->paths, state2) {
pa_alsa_element *ea, *eb;
pa_alsa_jack *ja, *jb;
bool is_subset = true;
if (p == p2)
continue;
/* If a has a jack that b does not have, a is not a subset */
PA_LLIST_FOREACH(ja, p->jacks) {
bool exists = false;
if (!ja->has_control)
continue;
PA_LLIST_FOREACH(jb, p2->jacks) {
if (jb->has_control && pa_streq(jb->alsa_name, ja->alsa_name) &&
(ja->state_plugged == jb->state_plugged) &&
(ja->state_unplugged == jb->state_unplugged)) {
exists = true;
break;
}
}
if (!exists) {
is_subset = false;
break;
}
}
/* Compare the elements of each set... */
PA_LLIST_FOREACH(ea, p->elements) {
bool found_matching_element = false;
if (!is_subset)
break;
PA_LLIST_FOREACH(eb, p2->elements) {
if (pa_streq(ea->alsa_name, eb->alsa_name)) {
found_matching_element = true;
is_subset = element_is_subset(ea, eb, m);
break;
}
}
if (!found_matching_element)
is_subset = false;
}
if (is_subset) {
pa_log_debug("Removing path '%s' as it is a subset of '%s'.", p->name, p2->name);
pa_hashmap_remove(ps->paths, p);
break;
}
}
}
}
static pa_alsa_path* path_set_find_path_by_description(pa_alsa_path_set *ps, const char* description, pa_alsa_path *ignore) {
pa_alsa_path* p;
void *state;
PA_HASHMAP_FOREACH(p, ps->paths, state)
if (p != ignore && pa_streq(p->description, description))
return p;
return NULL;
}
static void path_set_make_path_descriptions_unique(pa_alsa_path_set *ps) {
pa_alsa_path *p, *q;
void *state, *state2;
PA_HASHMAP_FOREACH(p, ps->paths, state) {
unsigned i;
char *old_description;
q = path_set_find_path_by_description(ps, p->description, p);
if (!q)
continue;
old_description = pa_xstrdup(p->description);
/* OK, this description is not unique, hence let's rename */
i = 1;
PA_HASHMAP_FOREACH(q, ps->paths, state2) {
char *new_description;
if (!pa_streq(q->description, old_description))
continue;
new_description = pa_sprintf_malloc("%s %u", q->description, i);
pa_xfree(q->description);
q->description = new_description;
i++;
}
pa_xfree(old_description);
}
}
static void mapping_free(pa_alsa_mapping *m) {
pa_assert(m);
pa_xfree(m->name);
pa_xfree(m->description);
pa_proplist_free(m->proplist);
pa_xstrfreev(m->device_strings);
pa_xstrfreev(m->input_path_names);
pa_xstrfreev(m->output_path_names);
pa_xstrfreev(m->input_element);
pa_xstrfreev(m->output_element);
if (m->input_path_set)
pa_alsa_path_set_free(m->input_path_set);
if (m->output_path_set)
pa_alsa_path_set_free(m->output_path_set);
pa_assert(!m->input_pcm);
pa_assert(!m->output_pcm);
pa_alsa_ucm_mapping_context_free(&m->ucm_context);
pa_xfree(m);
}
static void profile_free(pa_alsa_profile *p) {
pa_assert(p);
pa_xfree(p->name);
pa_xfree(p->description);
pa_xstrfreev(p->input_mapping_names);
pa_xstrfreev(p->output_mapping_names);
if (p->input_mappings)
pa_idxset_free(p->input_mappings, NULL);
if (p->output_mappings)
pa_idxset_free(p->output_mappings, NULL);
pa_xfree(p);
}
void pa_alsa_profile_set_free(pa_alsa_profile_set *ps) {
pa_assert(ps);
if (ps->input_paths)
pa_hashmap_free(ps->input_paths);
if (ps->output_paths)
pa_hashmap_free(ps->output_paths);
if (ps->profiles)
pa_hashmap_free(ps->profiles);
if (ps->mappings)
pa_hashmap_free(ps->mappings);
if (ps->decibel_fixes)
pa_hashmap_free(ps->decibel_fixes);
pa_xfree(ps);
}
pa_alsa_mapping *pa_alsa_mapping_get(pa_alsa_profile_set *ps, const char *name) {
pa_alsa_mapping *m;
if (!pa_startswith(name, "Mapping "))
return NULL;
name += 8;
if ((m = pa_hashmap_get(ps->mappings, name)))
return m;
m = pa_xnew0(pa_alsa_mapping, 1);
m->profile_set = ps;
m->exact_channels = true;
m->name = pa_xstrdup(name);
pa_sample_spec_init(&m->sample_spec);
pa_channel_map_init(&m->channel_map);
m->proplist = pa_proplist_new();
pa_hashmap_put(ps->mappings, m->name, m);
return m;
}
static pa_alsa_profile *profile_get(pa_alsa_profile_set *ps, const char *name) {
pa_alsa_profile *p;
if (!pa_startswith(name, "Profile "))
return NULL;
name += 8;
if ((p = pa_hashmap_get(ps->profiles, name)))
return p;
p = pa_xnew0(pa_alsa_profile, 1);
p->profile_set = ps;
p->name = pa_xstrdup(name);
pa_hashmap_put(ps->profiles, p->name, p);
return p;
}
static pa_alsa_decibel_fix *decibel_fix_get(pa_alsa_profile_set *ps, const char *name) {
pa_alsa_decibel_fix *db_fix;
if (!pa_startswith(name, "DecibelFix "))
return NULL;
name += 11;
if ((db_fix = pa_hashmap_get(ps->decibel_fixes, name)))
return db_fix;
db_fix = pa_xnew0(pa_alsa_decibel_fix, 1);
db_fix->profile_set = ps;
db_fix->name = pa_xstrdup(name);
pa_hashmap_put(ps->decibel_fixes, db_fix->name, db_fix);
return db_fix;
}
static int mapping_parse_device_strings(pa_config_parser_state *state) {
pa_alsa_profile_set *ps;
pa_alsa_mapping *m;
pa_assert(state);
ps = state->userdata;
if (!(m = pa_alsa_mapping_get(ps, state->section))) {
pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
return -1;
}
pa_xstrfreev(m->device_strings);
if (!(m->device_strings = pa_split_spaces_strv(state->rvalue))) {
pa_log("[%s:%u] Device string list empty of '%s'", state->filename, state->lineno, state->section);
return -1;
}
return 0;
}
static int mapping_parse_channel_map(pa_config_parser_state *state) {
pa_alsa_profile_set *ps;
pa_alsa_mapping *m;
pa_assert(state);
ps = state->userdata;
if (!(m = pa_alsa_mapping_get(ps, state->section))) {
pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
return -1;
}
if (!(pa_channel_map_parse(&m->channel_map, state->rvalue))) {
pa_log("[%s:%u] Channel map invalid of '%s'", state->filename, state->lineno, state->section);
return -1;
}
return 0;
}
static int mapping_parse_paths(pa_config_parser_state *state) {
pa_alsa_profile_set *ps;
pa_alsa_mapping *m;
pa_assert(state);
ps = state->userdata;
if (!(m = pa_alsa_mapping_get(ps, state->section))) {
pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
return -1;
}
if (pa_streq(state->lvalue, "paths-input")) {
pa_xstrfreev(m->input_path_names);
m->input_path_names = pa_split_spaces_strv(state->rvalue);
} else {
pa_xstrfreev(m->output_path_names);
m->output_path_names = pa_split_spaces_strv(state->rvalue);
}
return 0;
}
static int mapping_parse_exact_channels(pa_config_parser_state *state) {
pa_alsa_profile_set *ps;
pa_alsa_mapping *m;
int b;
pa_assert(state);
ps = state->userdata;
if (!(m = pa_alsa_mapping_get(ps, state->section))) {
pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
return -1;
}
if ((b = pa_parse_boolean(state->rvalue)) < 0) {
pa_log("[%s:%u] %s has invalid value '%s'", state->filename, state->lineno, state->lvalue, state->section);
return -1;
}
m->exact_channels = b;
return 0;
}
static int mapping_parse_element(pa_config_parser_state *state) {
pa_alsa_profile_set *ps;
pa_alsa_mapping *m;
pa_assert(state);
ps = state->userdata;
if (!(m = pa_alsa_mapping_get(ps, state->section))) {
pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
return -1;
}
if (pa_streq(state->lvalue, "element-input")) {
pa_xstrfreev(m->input_element);
m->input_element = pa_split_spaces_strv(state->rvalue);
} else {
pa_xstrfreev(m->output_element);
m->output_element = pa_split_spaces_strv(state->rvalue);
}
return 0;
}
static int mapping_parse_direction(pa_config_parser_state *state) {
pa_alsa_profile_set *ps;
pa_alsa_mapping *m;
pa_assert(state);
ps = state->userdata;
if (!(m = pa_alsa_mapping_get(ps, state->section))) {
pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section);
return -1;
}
if (pa_streq(state->rvalue, "input"))
m->direction = PA_ALSA_DIRECTION_INPUT;
else if (pa_streq(state->rvalue, "output"))
m->direction = PA_ALSA_DIRECTION_OUTPUT;
else if (pa_streq(state->rvalue, "any"))
m->direction = PA_ALSA_DIRECTION_ANY;
else {
pa_log("[%s:%u] Direction %s invalid.", state->filename, state->lineno, state->rvalue);
return -1;
}
return 0;
}
static int mapping_parse_description(pa_config_parser_state *state) {
pa_alsa_profile_set *ps;
pa_alsa_profile *p;
pa_alsa_mapping *m;
pa_assert(state);
ps = state->userdata;
if ((m = pa_alsa_mapping_get(ps, state->section))) {
pa_xfree(m->description);
m->description = pa_xstrdup(state->rvalue);
} else if ((p = profile_get(ps, state->section))) {
pa_xfree(p->description);
p->description = pa_xstrdup(state->rvalue);
} else {
pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section);
return -1;
}
return 0;
}
static int mapping_parse_priority(pa_config_parser_state *state) {
pa_alsa_profile_set *ps;
pa_alsa_profile *p;
pa_alsa_mapping *m;
uint32_t prio;
pa_assert(state);
ps = state->userdata;
if (pa_atou(state->rvalue, &prio) < 0) {
pa_log("[%s:%u] Priority invalid of '%s'", state->filename, state->lineno, state->section);
return -1;
}
if ((m = pa_alsa_mapping_get(ps, state->section)))
m->priority = prio;
else if ((p = profile_get(ps, state->section)))
p->priority = prio;
else {
pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section);
return -1;
}
return 0;
}
static int mapping_parse_fallback(pa_config_parser_state *state) {
pa_alsa_profile_set *ps;
pa_alsa_profile *p;
pa_alsa_mapping *m;
int k;
pa_assert(state);
ps = state->userdata;
if ((k = pa_parse_boolean(state->rvalue)) < 0) {
pa_log("[%s:%u] Fallback invalid of '%s'", state->filename, state->lineno, state->section);
return -1;
}
if ((m = pa_alsa_mapping_get(ps, state->section)))
m->fallback = k;
else if ((p = profile_get(ps, state->section)))
p->fallback_input = p->fallback_output = k;
else {
pa_log("[%s:%u] Section name %s invalid.", state->filename, state->lineno, state->section);
return -1;
}
return 0;
}
static int profile_parse_mappings(pa_config_parser_state *state) {
pa_alsa_profile_set *ps;
pa_alsa_profile *p;
pa_assert(state);
ps = state->userdata;
if (!(p = profile_get(ps, state->section))) {
pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
return -1;
}
if (pa_streq(state->lvalue, "input-mappings")) {
pa_xstrfreev(p->input_mapping_names);
p->input_mapping_names = pa_split_spaces_strv(state->rvalue);
} else {
pa_xstrfreev(p->output_mapping_names);
p->output_mapping_names = pa_split_spaces_strv(state->rvalue);
}
return 0;
}
static int profile_parse_skip_probe(pa_config_parser_state *state) {
pa_alsa_profile_set *ps;
pa_alsa_profile *p;
int b;
pa_assert(state);
ps = state->userdata;
if (!(p = profile_get(ps, state->section))) {
pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
return -1;
}
if ((b = pa_parse_boolean(state->rvalue)) < 0) {
pa_log("[%s:%u] Skip probe invalid of '%s'", state->filename, state->lineno, state->section);
return -1;
}
p->supported = b;
return 0;
}
static int decibel_fix_parse_db_values(pa_config_parser_state *state) {
pa_alsa_profile_set *ps;
pa_alsa_decibel_fix *db_fix;
char **items;
char *item;
long *db_values;
unsigned n = 8; /* Current size of the db_values table. */
unsigned min_step = 0;
unsigned max_step = 0;
unsigned i = 0; /* Index to the items table. */
unsigned prev_step = 0;
double prev_db = 0;
pa_assert(state);
ps = state->userdata;
if (!(db_fix = decibel_fix_get(ps, state->section))) {
pa_log("[%s:%u] %s invalid in section %s", state->filename, state->lineno, state->lvalue, state->section);
return -1;
}
if (!(items = pa_split_spaces_strv(state->rvalue))) {
pa_log("[%s:%u] Value missing", state->filename, state->lineno);
return -1;
}
db_values = pa_xnew(long, n);
while ((item = items[i++])) {
char *s = item; /* Step value string. */
char *d = item; /* dB value string. */
uint32_t step;
double db;
/* Move d forward until it points to a colon or to the end of the item. */
for (; *d && *d != ':'; ++d);
if (d == s) {
/* item started with colon. */
pa_log("[%s:%u] No step value found in %s", state->filename, state->lineno, item);
goto fail;
}
if (!*d || !*(d + 1)) {
/* No colon found, or it was the last character in item. */
pa_log("[%s:%u] No dB value found in %s", state->filename, state->lineno, item);
goto fail;
}
/* pa_atou() needs a null-terminating string. Let's replace the colon
* with a zero byte. */
*d++ = '\0';
if (pa_atou(s, &step) < 0) {
pa_log("[%s:%u] Invalid step value: %s", state->filename, state->lineno, s);
goto fail;
}
if (pa_atod(d, &db) < 0) {
pa_log("[%s:%u] Invalid dB value: %s", state->filename, state->lineno, d);
goto fail;
}
if (step <= prev_step && i != 1) {
pa_log("[%s:%u] Step value %u not greater than the previous value %u", state->filename, state->lineno, step, prev_step);
goto fail;
}
if (db < prev_db && i != 1) {
pa_log("[%s:%u] Decibel value %0.2f less than the previous value %0.2f", state->filename, state->lineno, db, prev_db);
goto fail;
}
if (i == 1) {
min_step = step;
db_values[0] = (long) (db * 100.0);
prev_step = step;
prev_db = db;
} else {
/* Interpolate linearly. */
double db_increment = (db - prev_db) / (step - prev_step);
for (; prev_step < step; ++prev_step, prev_db += db_increment) {
/* Reallocate the db_values table if it's about to overflow. */
if (prev_step + 1 - min_step == n) {
n *= 2;
db_values = pa_xrenew(long, db_values, n);
}
db_values[prev_step + 1 - min_step] = (long) ((prev_db + db_increment) * 100.0);
}
}
max_step = step;
}
db_fix->min_step = min_step;
db_fix->max_step = max_step;
pa_xfree(db_fix->db_values);
db_fix->db_values = db_values;
pa_xstrfreev(items);
return 0;
fail:
pa_xstrfreev(items);
pa_xfree(db_values);
return -1;
}
static void mapping_paths_probe(pa_alsa_mapping *m, pa_alsa_profile *profile,
pa_alsa_direction_t direction, pa_hashmap *used_paths) {
pa_alsa_path *p;
void *state;
snd_pcm_t *pcm_handle;
pa_alsa_path_set *ps;
snd_mixer_t *mixer_handle;
if (direction == PA_ALSA_DIRECTION_OUTPUT) {
if (m->output_path_set)
return; /* Already probed */
m->output_path_set = ps = pa_alsa_path_set_new(m, direction, NULL); /* FIXME: Handle paths_dir */
pcm_handle = m->output_pcm;
} else {
if (m->input_path_set)
return; /* Already probed */
m->input_path_set = ps = pa_alsa_path_set_new(m, direction, NULL); /* FIXME: Handle paths_dir */
pcm_handle = m->input_pcm;
}
if (!ps)
return; /* No paths */
pa_assert(pcm_handle);
mixer_handle = pa_alsa_open_mixer_for_pcm(pcm_handle, NULL);
if (!mixer_handle) {
/* Cannot open mixer, remove all entries */
pa_hashmap_remove_all(ps->paths);
return;
}
PA_HASHMAP_FOREACH(p, ps->paths, state) {
if (pa_alsa_path_probe(p, mixer_handle, m->profile_set->ignore_dB) < 0) {
pa_hashmap_remove(ps->paths, p);
}
}
path_set_condense(ps, mixer_handle);
path_set_make_path_descriptions_unique(ps);
if (mixer_handle)
snd_mixer_close(mixer_handle);
PA_HASHMAP_FOREACH(p, ps->paths, state)
pa_hashmap_put(used_paths, p, p);
pa_log_debug("Available mixer paths (after tidying):");
pa_alsa_path_set_dump(ps);
}
static int mapping_verify(pa_alsa_mapping *m, const pa_channel_map *bonus) {
static const struct description_map well_known_descriptions[] = {
{ "analog-mono", N_("Analog Mono") },
{ "analog-stereo", N_("Analog Stereo") },
{ "multichannel", N_("Multichannel") },
{ "analog-surround-21", N_("Analog Surround 2.1") },
{ "analog-surround-30", N_("Analog Surround 3.0") },
{ "analog-surround-31", N_("Analog Surround 3.1") },
{ "analog-surround-40", N_("Analog Surround 4.0") },
{ "analog-surround-41", N_("Analog Surround 4.1") },
{ "analog-surround-50", N_("Analog Surround 5.0") },
{ "analog-surround-51", N_("Analog Surround 5.1") },
{ "analog-surround-61", N_("Analog Surround 6.0") },
{ "analog-surround-61", N_("Analog Surround 6.1") },
{ "analog-surround-70", N_("Analog Surround 7.0") },
{ "analog-surround-71", N_("Analog Surround 7.1") },
{ "iec958-stereo", N_("Digital Stereo (IEC958)") },
{ "iec958-passthrough", N_("Digital Passthrough (IEC958)") },
{ "iec958-ac3-surround-40", N_("Digital Surround 4.0 (IEC958/AC3)") },
{ "iec958-ac3-surround-51", N_("Digital Surround 5.1 (IEC958/AC3)") },
{ "iec958-dts-surround-51", N_("Digital Surround 5.1 (IEC958/DTS)") },
{ "hdmi-stereo", N_("Digital Stereo (HDMI)") },
{ "hdmi-surround-51", N_("Digital Surround 5.1 (HDMI)") }
};
pa_assert(m);
if (!pa_channel_map_valid(&m->channel_map)) {
pa_log("Mapping %s is missing channel map.", m->name);
return -1;
}
if (!m->device_strings) {
pa_log("Mapping %s is missing device strings.", m->name);
return -1;
}
if ((m->input_path_names && m->input_element) ||
(m->output_path_names && m->output_element)) {
pa_log("Mapping %s must have either mixer path or mixer element, not both.", m->name);
return -1;
}
if (!m->description)
m->description = pa_xstrdup(lookup_description(m->name,
well_known_descriptions,
PA_ELEMENTSOF(well_known_descriptions)));
if (!m->description)
m->description = pa_xstrdup(m->name);
if (bonus) {
if (pa_channel_map_equal(&m->channel_map, bonus))
m->priority += 50;
else if (m->channel_map.channels == bonus->channels)
m->priority += 30;
}
return 0;
}
void pa_alsa_mapping_dump(pa_alsa_mapping *m) {
char cm[PA_CHANNEL_MAP_SNPRINT_MAX];
pa_assert(m);
pa_log_debug("Mapping %s (%s), priority=%u, channel_map=%s, supported=%s, direction=%i",
m->name,
pa_strnull(m->description),
m->priority,
pa_channel_map_snprint(cm, sizeof(cm), &m->channel_map),
pa_yes_no(m->supported),
m->direction);
}
static void profile_set_add_auto_pair(
pa_alsa_profile_set *ps,
pa_alsa_mapping *m, /* output */
pa_alsa_mapping *n /* input */) {
char *name;
pa_alsa_profile *p;
pa_assert(ps);
pa_assert(m || n);
if (m && m->direction == PA_ALSA_DIRECTION_INPUT)
return;
if (n && n->direction == PA_ALSA_DIRECTION_OUTPUT)
return;
if (m && n)
name = pa_sprintf_malloc("output:%s+input:%s", m->name, n->name);
else if (m)
name = pa_sprintf_malloc("output:%s", m->name);
else
name = pa_sprintf_malloc("input:%s", n->name);
if (pa_hashmap_get(ps->profiles, name)) {
pa_xfree(name);
return;
}
p = pa_xnew0(pa_alsa_profile, 1);
p->profile_set = ps;
p->name = name;
if (m) {
p->output_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
pa_idxset_put(p->output_mappings, m, NULL);
p->priority += m->priority * 100;
p->fallback_output = m->fallback;
}
if (n) {
p->input_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
pa_idxset_put(p->input_mappings, n, NULL);
p->priority += n->priority;
p->fallback_input = n->fallback;
}
pa_hashmap_put(ps->profiles, p->name, p);
}
static void profile_set_add_auto(pa_alsa_profile_set *ps) {
pa_alsa_mapping *m, *n;
void *m_state, *n_state;
pa_assert(ps);
/* The order is important here:
1) try single inputs and outputs before trying their
combination, because if the half-duplex test failed, we don't have
to try full duplex.
2) try the output right before the input combinations with
that output, because then the output_pcm is not closed between tests.
*/
PA_HASHMAP_FOREACH(n, ps->mappings, n_state)
profile_set_add_auto_pair(ps, NULL, n);
PA_HASHMAP_FOREACH(m, ps->mappings, m_state) {
profile_set_add_auto_pair(ps, m, NULL);
PA_HASHMAP_FOREACH(n, ps->mappings, n_state)
profile_set_add_auto_pair(ps, m, n);
}
}
static int profile_verify(pa_alsa_profile *p) {
static const struct description_map well_known_descriptions[] = {
{ "output:analog-mono+input:analog-mono", N_("Analog Mono Duplex") },
{ "output:analog-stereo+input:analog-stereo", N_("Analog Stereo Duplex") },
{ "output:iec958-stereo+input:iec958-stereo", N_("Digital Stereo Duplex (IEC958)") },
{ "off", N_("Off") }
};
pa_assert(p);
/* Replace the output mapping names by the actual mappings */
if (p->output_mapping_names) {
char **name;
pa_assert(!p->output_mappings);
p->output_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
for (name = p->output_mapping_names; *name; name++) {
pa_alsa_mapping *m;
char **in;
bool duplicate = false;
for (in = name + 1; *in; in++)
if (pa_streq(*name, *in)) {
duplicate = true;
break;
}
if (duplicate)
continue;
if (!(m = pa_hashmap_get(p->profile_set->mappings, *name)) || m->direction == PA_ALSA_DIRECTION_INPUT) {
pa_log("Profile '%s' refers to nonexistent mapping '%s'.", p->name, *name);
return -1;
}
pa_idxset_put(p->output_mappings, m, NULL);
if (p->supported)
m->supported++;
}
pa_xstrfreev(p->output_mapping_names);
p->output_mapping_names = NULL;
}
/* Replace the input mapping names by the actual mappings */
if (p->input_mapping_names) {
char **name;
pa_assert(!p->input_mappings);
p->input_mappings = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
for (name = p->input_mapping_names; *name; name++) {
pa_alsa_mapping *m;
char **in;
bool duplicate = false;
for (in = name + 1; *in; in++)
if (pa_streq(*name, *in)) {
duplicate = true;
break;
}
if (duplicate)
continue;
if (!(m = pa_hashmap_get(p->profile_set->mappings, *name)) || m->direction == PA_ALSA_DIRECTION_OUTPUT) {
pa_log("Profile '%s' refers to nonexistent mapping '%s'.", p->name, *name);
return -1;
}
pa_idxset_put(p->input_mappings, m, NULL);
if (p->supported)
m->supported++;
}
pa_xstrfreev(p->input_mapping_names);
p->input_mapping_names = NULL;
}
if (!p->input_mappings && !p->output_mappings) {
pa_log("Profile '%s' lacks mappings.", p->name);
return -1;
}
if (!p->description)
p->description = pa_xstrdup(lookup_description(p->name,
well_known_descriptions,
PA_ELEMENTSOF(well_known_descriptions)));
if (!p->description) {
pa_strbuf *sb;
uint32_t idx;
pa_alsa_mapping *m;
sb = pa_strbuf_new();
if (p->output_mappings)
PA_IDXSET_FOREACH(m, p->output_mappings, idx) {
if (!pa_strbuf_isempty(sb))
pa_strbuf_puts(sb, " + ");
pa_strbuf_printf(sb, _("%s Output"), m->description);
}
if (p->input_mappings)
PA_IDXSET_FOREACH(m, p->input_mappings, idx) {
if (!pa_strbuf_isempty(sb))
pa_strbuf_puts(sb, " + ");
pa_strbuf_printf(sb, _("%s Input"), m->description);
}
p->description = pa_strbuf_tostring_free(sb);
}
return 0;
}
void pa_alsa_profile_dump(pa_alsa_profile *p) {
uint32_t idx;
pa_alsa_mapping *m;
pa_assert(p);
pa_log_debug("Profile %s (%s), priority=%u, supported=%s n_input_mappings=%u, n_output_mappings=%u",
p->name,
pa_strnull(p->description),
p->priority,
pa_yes_no(p->supported),
p->input_mappings ? pa_idxset_size(p->input_mappings) : 0,
p->output_mappings ? pa_idxset_size(p->output_mappings) : 0);
if (p->input_mappings)
PA_IDXSET_FOREACH(m, p->input_mappings, idx)
pa_log_debug("Input %s", m->name);
if (p->output_mappings)
PA_IDXSET_FOREACH(m, p->output_mappings, idx)
pa_log_debug("Output %s", m->name);
}
static int decibel_fix_verify(pa_alsa_decibel_fix *db_fix) {
pa_assert(db_fix);
/* Check that the dB mapping has been configured. Since "db-values" is
* currently the only option in the DecibelFix section, and decibel fix
* objects don't get created if a DecibelFix section is empty, this is
* actually a redundant check. Having this may prevent future bugs,
* however. */
if (!db_fix->db_values) {
pa_log("Decibel fix for element %s lacks the dB values.", db_fix->name);
return -1;
}
return 0;
}
void pa_alsa_decibel_fix_dump(pa_alsa_decibel_fix *db_fix) {
char *db_values = NULL;
pa_assert(db_fix);
if (db_fix->db_values) {
pa_strbuf *buf;
unsigned long i, nsteps;
pa_assert(db_fix->min_step <= db_fix->max_step);
nsteps = db_fix->max_step - db_fix->min_step + 1;
buf = pa_strbuf_new();
for (i = 0; i < nsteps; ++i)
pa_strbuf_printf(buf, "[%li]:%0.2f ", i + db_fix->min_step, db_fix->db_values[i] / 100.0);
db_values = pa_strbuf_tostring_free(buf);
}
pa_log_debug("Decibel fix %s, min_step=%li, max_step=%li, db_values=%s",
db_fix->name, db_fix->min_step, db_fix->max_step, pa_strnull(db_values));
pa_xfree(db_values);
}
pa_alsa_profile_set* pa_alsa_profile_set_new(const char *fname, const pa_channel_map *bonus) {
pa_alsa_profile_set *ps;
pa_alsa_profile *p;
pa_alsa_mapping *m;
pa_alsa_decibel_fix *db_fix;
char *fn;
int r;
void *state;
static pa_config_item items[] = {
/* [General] */
{ "auto-profiles", pa_config_parse_bool, NULL, "General" },
/* [Mapping ...] */
{ "device-strings", mapping_parse_device_strings, NULL, NULL },
{ "channel-map", mapping_parse_channel_map, NULL, NULL },
{ "paths-input", mapping_parse_paths, NULL, NULL },
{ "paths-output", mapping_parse_paths, NULL, NULL },
{ "element-input", mapping_parse_element, NULL, NULL },
{ "element-output", mapping_parse_element, NULL, NULL },
{ "direction", mapping_parse_direction, NULL, NULL },
{ "exact-channels", mapping_parse_exact_channels, NULL, NULL },
/* Shared by [Mapping ...] and [Profile ...] */
{ "description", mapping_parse_description, NULL, NULL },
{ "priority", mapping_parse_priority, NULL, NULL },
{ "fallback", mapping_parse_fallback, NULL, NULL },
/* [Profile ...] */
{ "input-mappings", profile_parse_mappings, NULL, NULL },
{ "output-mappings", profile_parse_mappings, NULL, NULL },
{ "skip-probe", profile_parse_skip_probe, NULL, NULL },
/* [DecibelFix ...] */
{ "db-values", decibel_fix_parse_db_values, NULL, NULL },
{ NULL, NULL, NULL, NULL }
};
ps = pa_xnew0(pa_alsa_profile_set, 1);
ps->mappings = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) mapping_free);
ps->profiles = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) profile_free);
ps->decibel_fixes = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) decibel_fix_free);
ps->input_paths = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) pa_alsa_path_free);
ps->output_paths = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, (pa_free_cb_t) pa_alsa_path_free);
items[0].data = &ps->auto_profiles;
if (!fname)
fname = "default.conf";
fn = pa_maybe_prefix_path(fname,
pa_run_from_build_tree() ? PA_SRCDIR "/modules/alsa/mixer/profile-sets/" :
PA_ALSA_PROFILE_SETS_DIR);
r = pa_config_parse(fn, NULL, items, NULL, ps);
pa_xfree(fn);
if (r < 0)
goto fail;
PA_HASHMAP_FOREACH(m, ps->mappings, state)
if (mapping_verify(m, bonus) < 0)
goto fail;
if (ps->auto_profiles)
profile_set_add_auto(ps);
PA_HASHMAP_FOREACH(p, ps->profiles, state)
if (profile_verify(p) < 0)
goto fail;
PA_HASHMAP_FOREACH(db_fix, ps->decibel_fixes, state)
if (decibel_fix_verify(db_fix) < 0)
goto fail;
return ps;
fail:
pa_alsa_profile_set_free(ps);
return NULL;
}
static void profile_finalize_probing(pa_alsa_profile *to_be_finalized, pa_alsa_profile *next) {
pa_alsa_mapping *m;
uint32_t idx;
if (!to_be_finalized)
return;
if (to_be_finalized->output_mappings)
PA_IDXSET_FOREACH(m, to_be_finalized->output_mappings, idx) {
if (!m->output_pcm)
continue;
if (to_be_finalized->supported)
m->supported++;
/* If this mapping is also in the next profile, we won't close the
* pcm handle here, because it would get immediately reopened
* anyway. */
if (next && next->output_mappings && pa_idxset_get_by_data(next->output_mappings, m, NULL))
continue;
snd_pcm_close(m->output_pcm);
m->output_pcm = NULL;
}
if (to_be_finalized->input_mappings)
PA_IDXSET_FOREACH(m, to_be_finalized->input_mappings, idx) {
if (!m->input_pcm)
continue;
if (to_be_finalized->supported)
m->supported++;
/* If this mapping is also in the next profile, we won't close the
* pcm handle here, because it would get immediately reopened
* anyway. */
if (next && next->input_mappings && pa_idxset_get_by_data(next->input_mappings, m, NULL))
continue;
snd_pcm_close(m->input_pcm);
m->input_pcm = NULL;
}
}
static snd_pcm_t* mapping_open_pcm(pa_alsa_mapping *m,
const pa_sample_spec *ss,
const char *dev_id,
bool exact_channels,
int mode,
unsigned default_n_fragments,
unsigned default_fragment_size_msec) {
snd_pcm_t* handle;
pa_sample_spec try_ss = *ss;
pa_channel_map try_map = m->channel_map;
snd_pcm_uframes_t try_period_size, try_buffer_size;
try_ss.channels = try_map.channels;
try_period_size =
pa_usec_to_bytes(default_fragment_size_msec * PA_USEC_PER_MSEC, &try_ss) /
pa_frame_size(&try_ss);
try_buffer_size = default_n_fragments * try_period_size;
handle = pa_alsa_open_by_template(
m->device_strings, dev_id, NULL, &try_ss,
&try_map, mode, &try_period_size,
&try_buffer_size, 0, NULL, NULL, exact_channels);
if (handle && !exact_channels && m->channel_map.channels != try_map.channels) {
char buf[PA_CHANNEL_MAP_SNPRINT_MAX];
pa_log_debug("Channel map for mapping '%s' permanently changed to '%s'", m->name,
pa_channel_map_snprint(buf, sizeof(buf), &try_map));
m->channel_map = try_map;
}
return handle;
}
static void paths_drop_unused(pa_hashmap* h, pa_hashmap *keep) {
void* state = NULL;
const void* key;
pa_alsa_path* p;
pa_assert(h);
pa_assert(keep);
p = pa_hashmap_iterate(h, &state, &key);
while (p) {
if (pa_hashmap_get(keep, p) == NULL)
pa_hashmap_remove_and_free(h, key);
p = pa_hashmap_iterate(h, &state, &key);
}
}
static int add_profiles_to_probe(
pa_alsa_profile **list,
pa_hashmap *profiles,
bool fallback_output,
bool fallback_input) {
int i = 0;
void *state;
pa_alsa_profile *p;
PA_HASHMAP_FOREACH(p, profiles, state)
if (p->fallback_input == fallback_input && p->fallback_output == fallback_output) {
*list = p;
list++;
i++;
}
return i;
}
void pa_alsa_profile_set_probe(
pa_alsa_profile_set *ps,
const char *dev_id,
const pa_sample_spec *ss,
unsigned default_n_fragments,
unsigned default_fragment_size_msec) {
bool found_output = false, found_input = false;
pa_alsa_profile *p, *last = NULL;
pa_alsa_profile **pp, **probe_order;
pa_alsa_mapping *m;
pa_hashmap *broken_inputs, *broken_outputs, *used_paths;
pa_assert(ps);
pa_assert(dev_id);
pa_assert(ss);
if (ps->probed)
return;
broken_inputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
broken_outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
used_paths = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
pp = probe_order = pa_xnew0(pa_alsa_profile *, pa_hashmap_size(ps->profiles) + 1);
pp += add_profiles_to_probe(pp, ps->profiles, false, false);
pp += add_profiles_to_probe(pp, ps->profiles, false, true);
pp += add_profiles_to_probe(pp, ps->profiles, true, false);
pp += add_profiles_to_probe(pp, ps->profiles, true, true);
for (pp = probe_order; *pp; pp++) {
uint32_t idx;
p = *pp;
/* Skip if fallback and already found something */
if (found_input && p->fallback_input)
continue;
if (found_output && p->fallback_output)
continue;
/* Skip if this is already marked that it is supported (i.e. from the config file) */
if (!p->supported) {
profile_finalize_probing(last, p);
p->supported = true;
if (p->output_mappings) {
PA_IDXSET_FOREACH(m, p->output_mappings, idx) {
if (pa_hashmap_get(broken_outputs, m) == m) {
pa_log_debug("Skipping profile %s - will not be able to open output:%s", p->name, m->name);
p->supported = false;
break;
}
}
}
if (p->input_mappings && p->supported) {
PA_IDXSET_FOREACH(m, p->input_mappings, idx) {
if (pa_hashmap_get(broken_inputs, m) == m) {
pa_log_debug("Skipping profile %s - will not be able to open input:%s", p->name, m->name);
p->supported = false;
break;
}
}
}
if (p->supported)
pa_log_debug("Looking at profile %s", p->name);
/* Check if we can open all new ones */
if (p->output_mappings && p->supported)
PA_IDXSET_FOREACH(m, p->output_mappings, idx) {
if (m->output_pcm)
continue;
pa_log_debug("Checking for playback on %s (%s)", m->description, m->name);
if (!(m->output_pcm = mapping_open_pcm(m, ss, dev_id, m->exact_channels,
SND_PCM_STREAM_PLAYBACK,
default_n_fragments,
default_fragment_size_msec))) {
p->supported = false;
if (pa_idxset_size(p->output_mappings) == 1 &&
((!p->input_mappings) || pa_idxset_size(p->input_mappings) == 0)) {
pa_log_debug("Caching failure to open output:%s", m->name);
pa_hashmap_put(broken_outputs, m, m);
}
break;
}
}
if (p->input_mappings && p->supported)
PA_IDXSET_FOREACH(m, p->input_mappings, idx) {
if (m->input_pcm)
continue;
pa_log_debug("Checking for recording on %s (%s)", m->description, m->name);
if (!(m->input_pcm = mapping_open_pcm(m, ss, dev_id, m->exact_channels,
SND_PCM_STREAM_CAPTURE,
default_n_fragments,
default_fragment_size_msec))) {
p->supported = false;
if (pa_idxset_size(p->input_mappings) == 1 &&
((!p->output_mappings) || pa_idxset_size(p->output_mappings) == 0)) {
pa_log_debug("Caching failure to open input:%s", m->name);
pa_hashmap_put(broken_inputs, m, m);
}
break;
}
}
last = p;
if (!p->supported)
continue;
}
pa_log_debug("Profile %s supported.", p->name);
if (p->output_mappings)
PA_IDXSET_FOREACH(m, p->output_mappings, idx)
if (m->output_pcm) {
found_output |= !p->fallback_output;
mapping_paths_probe(m, p, PA_ALSA_DIRECTION_OUTPUT, used_paths);
}
if (p->input_mappings)
PA_IDXSET_FOREACH(m, p->input_mappings, idx)
if (m->input_pcm) {
found_input |= !p->fallback_input;
mapping_paths_probe(m, p, PA_ALSA_DIRECTION_INPUT, used_paths);
}
}
/* Clean up */
profile_finalize_probing(last, NULL);
pa_alsa_profile_set_drop_unsupported(ps);
paths_drop_unused(ps->input_paths, used_paths);
paths_drop_unused(ps->output_paths, used_paths);
pa_hashmap_free(broken_inputs);
pa_hashmap_free(broken_outputs);
pa_hashmap_free(used_paths);
pa_xfree(probe_order);
ps->probed = true;
}
void pa_alsa_profile_set_dump(pa_alsa_profile_set *ps) {
pa_alsa_profile *p;
pa_alsa_mapping *m;
pa_alsa_decibel_fix *db_fix;
void *state;
pa_assert(ps);
pa_log_debug("Profile set %p, auto_profiles=%s, probed=%s, n_mappings=%u, n_profiles=%u, n_decibel_fixes=%u",
(void*)
ps,
pa_yes_no(ps->auto_profiles),
pa_yes_no(ps->probed),
pa_hashmap_size(ps->mappings),
pa_hashmap_size(ps->profiles),
pa_hashmap_size(ps->decibel_fixes));
PA_HASHMAP_FOREACH(m, ps->mappings, state)
pa_alsa_mapping_dump(m);
PA_HASHMAP_FOREACH(p, ps->profiles, state)
pa_alsa_profile_dump(p);
PA_HASHMAP_FOREACH(db_fix, ps->decibel_fixes, state)
pa_alsa_decibel_fix_dump(db_fix);
}
void pa_alsa_profile_set_drop_unsupported(pa_alsa_profile_set *ps) {
pa_alsa_profile *p;
pa_alsa_mapping *m;
void *state;
PA_HASHMAP_FOREACH(p, ps->profiles, state) {
if (!p->supported)
pa_hashmap_remove_and_free(ps->profiles, p->name);
}
PA_HASHMAP_FOREACH(m, ps->mappings, state) {
if (m->supported <= 0)
pa_hashmap_remove_and_free(ps->mappings, m->name);
}
}
static pa_device_port* device_port_alsa_init(pa_hashmap *ports, /* card ports */
const char* name,
const char* description,
pa_alsa_path *path,
pa_alsa_setting *setting,
pa_card_profile *cp,
pa_hashmap *extra, /* sink/source ports */
pa_core *core) {
pa_device_port *p;
pa_assert(path);
p = pa_hashmap_get(ports, name);
if (!p) {
pa_alsa_port_data *data;
pa_device_port_new_data port_data;
pa_device_port_new_data_init(&port_data);
pa_device_port_new_data_set_name(&port_data, name);
pa_device_port_new_data_set_description(&port_data, description);
pa_device_port_new_data_set_direction(&port_data, path->direction == PA_ALSA_DIRECTION_OUTPUT ? PA_DIRECTION_OUTPUT : PA_DIRECTION_INPUT);
p = pa_device_port_new(core, &port_data, sizeof(pa_alsa_port_data));
pa_device_port_new_data_done(&port_data);
pa_assert(p);
pa_hashmap_put(ports, p->name, p);
pa_proplist_update(p->proplist, PA_UPDATE_REPLACE, path->proplist);
data = PA_DEVICE_PORT_DATA(p);
data->path = path;
data->setting = setting;
path->port = p;
}
if (cp)
pa_hashmap_put(p->profiles, cp->name, cp);
if (extra) {
pa_hashmap_put(extra, p->name, p);
pa_device_port_ref(p);
}
return p;
}
void pa_alsa_path_set_add_ports(
pa_alsa_path_set *ps,
pa_card_profile *cp,
pa_hashmap *ports, /* card ports */
pa_hashmap *extra, /* sink/source ports */
pa_core *core) {
pa_alsa_path *path;
void *state;
pa_assert(ports);
if (!ps)
return;
PA_HASHMAP_FOREACH(path, ps->paths, state) {
if (!path->settings || !path->settings->next) {
/* If there is no or just one setting we only need a
* single entry */
pa_device_port *port = device_port_alsa_init(ports, path->name,
path->description, path, path->settings, cp, extra, core);
port->priority = path->priority * 100;
} else {
pa_alsa_setting *s;
PA_LLIST_FOREACH(s, path->settings) {
pa_device_port *port;
char *n, *d;
n = pa_sprintf_malloc("%s;%s", path->name, s->name);
if (s->description[0])
d = pa_sprintf_malloc("%s / %s", path->description, s->description);
else
d = pa_xstrdup(path->description);
port = device_port_alsa_init(ports, n, d, path, s, cp, extra, core);
port->priority = path->priority * 100 + s->priority;
pa_xfree(n);
pa_xfree(d);
}
}
}
}
void pa_alsa_add_ports(void *sink_or_source_new_data, pa_alsa_path_set *ps, pa_card *card) {
pa_hashmap *ports;
pa_assert(sink_or_source_new_data);
pa_assert(ps);
if (ps->direction == PA_ALSA_DIRECTION_OUTPUT)
ports = ((pa_sink_new_data *) sink_or_source_new_data)->ports;
else
ports = ((pa_source_new_data *) sink_or_source_new_data)->ports;
if (ps->paths && pa_hashmap_size(ps->paths) > 0) {
pa_assert(card);
pa_alsa_path_set_add_ports(ps, NULL, card->ports, ports, card->core);
}
pa_log_debug("Added %u ports", pa_hashmap_size(ports));
}
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